Satellite data collecting and receiving machine
A satellite data and receiver technology, applied in the field of satellite communications, can solve the problems of low carrier-to-noise ratio and unsatisfactory application requirements, improve carrier-to-noise ratio and success rate, improve reception stability and frequency stability, and improve radio frequency Effective effects of integrated design measures
Active Publication Date: 2014-11-05
SHANGHAI SATELLITE ENG INST
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[0004] In order to solve the shortcomings of the prior art system in terms of receiving stability and frequency stability performance, which lead to low carrier-to-noise ratio and insufficient application requirements, the purpose of the present invention is to provide a satellite with high stability data collection receiver
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[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0026] exist figure 1 Shown in one embodiment, the structural diagram of the satellite radio frequency integrated UHF data collection receiver of the present invention. As shown, the receiver includes:
[0027] A receiving antenna 101 , which is connected to the receiving filter 102 , is used to receive uplink signals and send the uplink signals to the receiving filter 102 .
[0028] The receiving filter 102 is connected to the receiving antenna 101 through a radio frequency cable, and is connected to a high frequency switch 103 through a high frequency cable. It is used to filter the signal sent by the receiving antenna 101 , suppress out-of-band clutter and interference, and then send the signal to the high-frequency switch 103 .
[0029] A high frequency switch 103 is used to set the transmission channel of the uplink signal. This switch...
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The invention discloses a satellite data collecting and receiving machine, which comprises a receiving antenna, a receiving filter, a high frequency switch, a first low noise receiving front end module, a first automatic gain control module, a first surface acoustic wave dual-channel filter module, a first middle amplifier channel module, a second low noise receiving front end module, a second automatic gain control module, a second surface acoustic wave dual-channel filter module, a second middle amplifier channel module, a first local oscillator frequency source and a second local oscillator frequency source. By adopting the satellite data collecting and receiving machine, the bottleneck problem of the receiving stability and the frequency stability degree performance of a conventional satellite data collecting and receiving machine are solved, the data collecting signal-to-noise ratio and the data collecting success rate are increased, and an application effect is achieved.
Description
technical field [0001] The invention relates to the field of satellite communication, in particular to a satellite data collection receiver. Background technique [0002] Satellite data collection receivers are important payloads of satellites. The satellite data collection system has a series of characteristics such as long communication distance, large coverage area, not limited by geographical conditions, and suitable for various business transmissions. Data collection receivers are mainly used in ground weather stations in my country and areas where weather stations cannot be established, and can collect various meteorological, hydrological, resource, ocean, forest and other data obtained through the data collection platform (DCP). [0003] In the current domestic satellite field, low-noise, high-sensitivity, high-gain receivers are the key technologies of traditional satellite receivers. With the deterioration of the space electromagnetic environment, the anti-interfe...
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IPC IPC(8): H04B7/185
Inventor 张宏伟王艳军
Owner SHANGHAI SATELLITE ENG INST