CN103067070A - Portable satellite terminal test method and device - Google Patents
Portable satellite terminal test method and device Download PDFInfo
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- CN103067070A CN103067070A CN2013100235676A CN201310023567A CN103067070A CN 103067070 A CN103067070 A CN 103067070A CN 2013100235676 A CN2013100235676 A CN 2013100235676A CN 201310023567 A CN201310023567 A CN 201310023567A CN 103067070 A CN103067070 A CN 103067070A
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Abstract
The invention discloses a portable satellite terminal test method and a device and belongs to the technical field of satellite communication. The portable satellite terminal test method and the device comprise a first satellite communication machine, a second satellite communication machine, a noise generation unit, a power divider, a signal combiner and a power source module used for supplying power. The noise generation unit comprises a noise source generator and a noise amplifier, wherein the noise source generator simulates a noise signal under an actual use environment of a satellite and inputs the generated noise signal into the signal combiner through the noise source amplifier and the power divider in sequence. The first satellite communication machine sends out a carrier signal to the signal combiner. The signal combiner mixes the carrier signal with the noise signal, a testable noise load signal which fits in with the satellite communication machines is generated, and then the noise load signal is sent to the second satellite communication machine to be tested. According to the portable satellite terminal test method and the device, the signal strength sent out by a system and a terminal is enabled to meet signal input requirements of a satellite device, and a test can be achieved with no need of getting on the satellite.
Description
Technical field
The present invention relates to a kind of briefcase-sized terminal method of testing and device, belong to technical field of satellite communication.
Background technology
Satellite communication belongs to a kind of communication mode in the emergency communication, is widely used in the emergency management and rescue disaster relief works such as meteorology is emergent, fire-fighting emergent, government emergency, earthquake emergency.But for different industries, exist various satellite communication systems and ICBM SHF satellite terminal, the test of the test of each system and ICBM SHF satellite terminal and effect seem particularly important so.The test of satellite equipments need to take a large amount of satellite bandwidth resources, the satellite bandwidth resource is again limited simultaneously, the not enough situation of satellite bandwidth may occur at any time occurs, and exist the satellite bandwidth resource to be not intended to or to have a mind to by other users disturb, affected the test of satellite system and test and the debugging of related satellite product.And satellite system and terminal cannot directly be docked terminal and the system of input request signal, so just need a kind of device to replace the test of broadcasting TV programs by satellite of system.
Summary of the invention
The present invention is directed to deficiency and the higher tariff of the resource of existing satellite, a kind of portable satellite system testing tool of exempting to broadcast TV programs by satellite is provided, be used for the test of satellite system and terminal.This device is used for connecting main website and terminal, terminal and terminal, when needed, link to each other between the satellite communication system with this device and needs tests, the device for opening power supply just provides corresponding noise by this device, having raised the end makes an uproar, so that the signal strength signal intensity that system and terminal are sent, satisfy the signal input requirements of satellite equipments, finish the test of satellite communication system.
For realizing above technical purpose, the present invention will take following technical scheme:
A kind of briefcase-sized terminal testing apparatus comprises that the first to second satellite communication machine, noise generation unit, power splitter, signal close the road, and the power module that is used for power supply; Wherein, described noise generation unit comprises a noise source generator and a noise amplifier, noise signal under the described noise source generator analog satellite practical service environment is input to signal combiner by noise source amplifier, power splitter with the noise signal that produces successively; Described the first satellite communication machine sends carrier signal to signal combiner; Signal combiner is mixed the road with described carrier signal and noise signal, produces to meet testable year noise cancellation signal of satellite communication machine, and the second satellite communication machine that then sends it to is tested.
As a kind of optimal technical scheme of the present invention: also comprise a resistance, described resistance is connected between power module and the power splitter.
As a kind of optimal technical scheme of the present invention: also comprise first, second impedance transducer, described power splitter is sent to signal combiner by the first impedance transducer with noise signal, and described signal combiner will be carried noise cancellation signal by the second impedance transducer and is sent to the second satellite communication machine.
As a kind of optimal technical scheme of the present invention: also comprise a signal lamp, described signal lamp is connected with resistance.
As a kind of optimal technical scheme of the present invention: described noise source generator comprises the noise source of a kind of 9.75-10.6G.
As a kind of optimal technical scheme of the present invention: the power of described noise amplifier is 20dB.
As a kind of optimal technical scheme of the present invention: described power module is 24V or 18V DC power supply.
The invention provides a kind of method of testing based on the briefcase-sized terminal testing apparatus, comprise the steps:
(1) opens the first satellite communication machine, send carrier signal to signal combiner by the first satellite communication;
(2) the noise source generator produces the noise signal of 9.75-10.6G, is used for the noise signal under the analog satellite practical service environment;
(3) after this noise signal is amplified through noise amplifier, be input to signal combiner through power splitter;
(4) signal combiner is mixed the road with carrier signal and the described noise signal of step (3) of the output of the first satellite communication machine, produces to meet testable year noise cancellation signal of satellite communication machine;
(5) described signal combiner transfers to the second satellite communication machine with described year noise cancellation signal, finishes the test of simulating the satellite communication machine under the environment of broadcasting TV programs by satellite.
The present invention adopts technique scheme to bring following beneficial effect:
This device is used for connecting main website and terminal, terminal and terminal, when needed, link to each other between the satellite communication system with this device and needs tests, the device for opening power supply just provides corresponding noise by this device, having raised the end makes an uproar, so that the signal strength signal intensity that system and terminal are sent, satisfy the signal input requirements of satellite equipments, finish the test of satellite communication system.Satellite communication machine signal out can be connected with another satellite communication system through behind this device, and the satellite communication machine need not be broadcast TV programs by satellite and just can be finished test like this, has solved the problem of the test of broadcasting TV programs by satellite.
Description of drawings
Fig. 1 is the module diagram of portable satellite opening machine system test device of the present invention.
Embodiment
As shown in Figure 1, a kind of briefcase-sized terminal method of testing and the device of the present invention's design comprise that the first to second satellite communication machine, noise generation unit, power splitter, signal close the road, and the power module that is used for power supply; Wherein, described noise generation unit comprises a noise source generator and a noise amplifier, noise signal under the described noise source generator analog satellite practical service environment is input to signal combiner by noise source amplifier, power splitter with the noise signal that produces successively; Described the first satellite communication machine sends carrier signal to signal combiner; Signal combiner is mixed the road with described carrier signal and noise signal, produces to meet testable year noise cancellation signal of satellite communication machine, and the second satellite communication machine that then sends it to is tested.Also comprise resistance, signal lamp, first, second impedance transducer, wherein resistance is connected between power module and the power splitter, signal lamp is connected with resistance, power splitter is connected with first, second impedance transducer with signal combiner and is connected, described power splitter is sent to signal combiner by the first impedance transducer with noise signal, and described signal combiner will be carried noise cancellation signal by the second impedance transducer and is sent to the second satellite communication machine.
Method of testing of the present invention is as follows:
The (1) first to second satellite communication machine is opened, and the first satellite communication machine sends carrier signal;
(2) carrier signal enters into signal combiner;
(3) open the portable satellite opening machine system test device;
(4) power up after, the noise source generator in the testing apparatus will produce the noise signal of 9.75-10.6G, be used for the noise signal under the analog satellite practical service environment;
(5) noise signal through power splitter, is input to signal combiner with noise signal through behind the noise amplifier of 20dB;
(6) signal combiner is mixed the road with the carrier signal of the first satellite communication machine output and the noise signal of noise source generator generation; Generation meets testable year noise cancellation signal of the second satellite communication machine;
(7) signal of signal combiner generation is input to the satellite signal receiving apparatus such as the second satellite communication machine or oscilloscope.Just finished the test of the satellite communication machine under the environment of broadcasting TV programs by satellite of simulating.
Power module is the DC power supply of 24V, through having become the 18V voltage that meets the noise source generator after the resistance step-down.Noise amplifier is through repeatedly test, and the simulate effect when power is 20dB is best.The noise source generator uses the noise source of 9.75-10.6G, the noise under the analog satellite communication system environment.
The present invention is used for test satellite system and terminal, is furnished with low noise amplifier, this accessory is responsible for providing noise, by noise amplifier noise is amplified, deliver to power splitter and signal combiner after the subsequently noise output, mix the road with the signal source of input, reduce the carrier-to-noise ratio of signal source, so that signal strength signal intensity meets the requirement of strength of Satellite Product signal input.Also be furnished with in addition power module, provide direct current used to low noise amplifier, input voltage reaches the input requirements of low noise amplifier by increasing resistance.Power splitter is used for connecing power supply and noise amplifier, and source current is input to noise source, and the noise inputs that simultaneously noise source is produced is to signal combiner; Signal combiner is used for the noise signal of the carrier signal of satellite communication machine and noise source generation is mixed the road.Power splitter links to each other with impedance transducer respectively with signal combiner, the interference of avoiding different impedances to bring.
Claims (8)
1. briefcase-sized terminal testing apparatus is characterized in that: comprise that the first to second satellite communication machine, noise generation unit, power splitter, signal close the road, and the power module that is used for power supply; Wherein, described noise generation unit comprises a noise source generator and a noise amplifier, noise signal under the described noise source generator analog satellite practical service environment is input to signal combiner by noise source amplifier, power splitter with the noise signal that produces successively; Described the first satellite communication machine sends carrier signal to signal combiner; Signal combiner is mixed the road with described carrier signal and noise signal, produces to meet testable year noise cancellation signal of satellite communication machine, and the second satellite communication machine that then sends it to is tested.
2. a kind of briefcase-sized terminal testing apparatus according to claim 1, it is characterized in that: also comprise a resistance, described resistance is connected between power module and the power splitter.
3. a kind of briefcase-sized terminal testing apparatus according to claim 1, it is characterized in that: also comprise first, second impedance transducer, described power splitter is sent to signal combiner by the first impedance transducer with noise signal, and described signal combiner will be carried noise cancellation signal by the second impedance transducer and is sent to the second satellite communication machine.
4. a kind of briefcase-sized terminal testing apparatus according to claim 2, it is characterized in that: also comprise a signal lamp, described signal lamp is connected with resistance.
5. a kind of briefcase-sized terminal testing apparatus according to claim 1, it is characterized in that: described noise source generator comprises the noise source of a kind of 9.75-10.6G.
6. a kind of briefcase-sized terminal testing apparatus according to claim 1, it is characterized in that: the power of described noise amplifier is 20dB.
7. a kind of briefcase-sized terminal testing apparatus according to claim 1, it is characterized in that: described power module is 24V or 18V DC power supply.
8. the method for testing based on briefcase-sized terminal testing apparatus claimed in claim 1 is characterized in that: comprise the steps:
(1) opens the first satellite communication machine, send carrier signal to signal combiner by the first satellite communication;
(2) the noise source generator produces the noise signal of 9.75-10.6G, is used for the noise signal under the analog satellite practical service environment;
(3) after this noise signal is amplified through noise amplifier, be input to signal combiner through power splitter;
(4) signal combiner is mixed the road with carrier signal and the described noise signal of step (3) of the output of the first satellite communication machine, produces to meet testable year noise cancellation signal of satellite communication machine;
(5) described signal combiner transfers to the second satellite communication machine with described year noise cancellation signal, finishes the test of simulating the satellite communication machine under the environment of broadcasting TV programs by satellite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100235676A CN103067070A (en) | 2013-01-22 | 2013-01-22 | Portable satellite terminal test method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100235676A CN103067070A (en) | 2013-01-22 | 2013-01-22 | Portable satellite terminal test method and device |
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| CN103067070A true CN103067070A (en) | 2013-04-24 |
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| CN2013100235676A Pending CN103067070A (en) | 2013-01-22 | 2013-01-22 | Portable satellite terminal test method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312423A (en) * | 2013-05-31 | 2013-09-18 | 郑州威科姆科技股份有限公司 | Multimode satellite receiver tracking source switch testing device |
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| US4742561A (en) * | 1985-09-10 | 1988-05-03 | Home Box Office, Inc. | Apparatus for generating signals useful for testing the sensitivity of microwave receiving equipment |
| CN102158242A (en) * | 2011-05-25 | 2011-08-17 | 哈尔滨工业大学 | System and method for testing antijamming capability of wireless communication products operating at ISM (Industry, Science and Medical) frequency range |
| CN102246053A (en) * | 2008-12-15 | 2011-11-16 | 莱特普茵特公司 | Radio frequency (rf) signal generator and method for providing test signals for testing multiple RF signal receivers |
| CN102299736A (en) * | 2010-06-25 | 2011-12-28 | 华为终端有限公司 | Method, system and equipment for debugging satellite receiving signal |
| CN203135881U (en) * | 2013-01-22 | 2013-08-14 | 南京中网卫星通信股份有限公司 | Portable satellite terminal test device |
-
2013
- 2013-01-22 CN CN2013100235676A patent/CN103067070A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4742561A (en) * | 1985-09-10 | 1988-05-03 | Home Box Office, Inc. | Apparatus for generating signals useful for testing the sensitivity of microwave receiving equipment |
| CN102246053A (en) * | 2008-12-15 | 2011-11-16 | 莱特普茵特公司 | Radio frequency (rf) signal generator and method for providing test signals for testing multiple RF signal receivers |
| CN102299736A (en) * | 2010-06-25 | 2011-12-28 | 华为终端有限公司 | Method, system and equipment for debugging satellite receiving signal |
| CN102158242A (en) * | 2011-05-25 | 2011-08-17 | 哈尔滨工业大学 | System and method for testing antijamming capability of wireless communication products operating at ISM (Industry, Science and Medical) frequency range |
| CN203135881U (en) * | 2013-01-22 | 2013-08-14 | 南京中网卫星通信股份有限公司 | Portable satellite terminal test device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312423A (en) * | 2013-05-31 | 2013-09-18 | 郑州威科姆科技股份有限公司 | Multimode satellite receiver tracking source switch testing device |
| CN103312423B (en) * | 2013-05-31 | 2015-01-28 | 郑州威科姆科技股份有限公司 | Multimode satellite receiver tracking source switch testing device |
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Application publication date: 20130424 |