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S-band satellite navigation signal transmitting system

A satellite navigation signal and transmission system technology, applied in the field of S-band satellite navigation signal transmission system, can solve the problem that a single S-band amplifier cannot provide sufficient transmission power, achieve broad market prospects and application value, enhance transmission power, solve Effects of EIRP deficiency

Active Publication Date: 2019-01-15
XIAN INSTITUE OF SPACE RADIO TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using a single S-band amplifier cannot provide sufficient transmit power, and a multi-feed spatial power combining scheme is required to achieve

Method used

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  • S-band satellite navigation signal transmitting system

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Embodiment Construction

[0020] (1) if figure 1 As shown, 1.5n S-band amplifiers are configured in the system, and a backup mode of n / 2 groups of 3:2 is adopted for the S-band power amplifiers. Amplifier backup, backup of the fifth S-band power amplifier to the fourth S-band power amplifier and sixth S-band power amplifier, 1.5n-1 S-band power amplifier to 1.5n-2 S-band power amplifiers and 1.5n The S-band power amplifiers are backed up, and the backup between the S-band power amplifiers is realized through the input and output T switches or S switches. Through the above backup methods, various radio frequency channel configurations can be realized.

[0021] (2) The single machine in the system is designed as follows:

[0022] 1) Each output port of the S-band power distribution network is required to have phase consistency;

[0023] 2) 1.5n S-band amplifiers have phase consistency;

[0024] 3) n sets of S-band output filters have phase consistency.

[0025] (3) Type selection and design of high-...

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Abstract

The invention discloses an S-band satellite navigation signal transmitting system. The S-band satellite navigation signal transmitting system comprises a set of S-band signal power division network, nsets of S-band output filters, n / 2 sets of T-shaped inputs, n / 2 sets of T-shaped output switches, n / 2 sets of S-shaped inputs, n / 2 sets of S-shaped output switches, 1.5n sets of S-band power amplifiers and high-frequency cables connected between each single machine, wherein the n is an even number; the S-band signal power division network divides an S-band navigation signal generated by a front end into n paths of signals, a signal power is enhanced via the S-band power amplifier configured for each path, and then an out-of-band clutter is filtered via the S-band output filters, thereby implementing broadcast of the S-band satellite navigation signal; a 3: 2 annular backup manner is adopted, i.e., every three sets of S-band power amplifiers are formed into an annular backup; and the wholesystem includes n / 2 groups of annular backup amplifiers.

Description

Technical field [0001] The invention relates to an S-band satellite navigation signal transmitting system, which belongs to the technical field of satellite navigation. Background technique [0002] Satellite navigation system has gradually become an important infrastructure of various countries. At present, several major global satellite navigation systems that provide services internationally, including the US GPS system, the European Galileo system, and the Russian GLONASS system, all broadcast satellite navigation signals in the L-band. Since the L frequency band is already very crowded, how to realize the broadcasting of navigation signals in the S frequency band has become a research hotspot. [0003] Our country proposes to load the S navigation payload on the high-orbit IXXX test satellite. Due to the high orbital height of the IXXX satellite, the space loss of the S-band navigation signal broadcast by the satellite is greater. Therefore, the IXXX satellite is requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/37
CPCG01S19/37
Inventor 袁国靖刘晗刘江邵军赵雯雯陈玲玲郭媛媛王奕凯刘冬李炫
Owner XIAN INSTITUE OF SPACE RADIO TECH