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A multi-carrier variable rate receiving and processing method in a fast frequency hopping system

A processing method and multi-carrier technology, applied in transmission systems, radio transmission systems, electrical components, etc., can solve problems such as lack of communication capabilities in strong interference environments, fixed anti-interference capabilities, and reduced flexibility, so as to save resources and improve Anti-interference ability, reduce complex effects

Active Publication Date: 2017-12-15
XIAN INSTITUE OF SPACE RADIO TECH
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Problems solved by technology

[0006] (2) The uplink contains multiple carriers, and the information rate is fixed; although this method has a large system capacity, due to the fixed information rate, the system's anti-interference ability is fixed, and it does not have the ability to communicate in a strong interference environment
[0007] (3) The uplink includes multiple carriers, and the information rate is divided into multiple levels according to the carrier, but the rate is fixed
Although this method takes into account the system capacity and anti-interference ability, the flexibility of the system is reduced; when the interference is strong, only a few carriers with low information rate can be guaranteed to communicate, on the contrary, when the interference is weak, even if the link It can support high-speed data transmission, but because the rate setting is fixed, only a few carriers can support high-speed data transmission, and the rest of the carriers can still only support low-speed data transmission

Method used

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  • A multi-carrier variable rate receiving and processing method in a fast frequency hopping system
  • A multi-carrier variable rate receiving and processing method in a fast frequency hopping system
  • A multi-carrier variable rate receiving and processing method in a fast frequency hopping system

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Embodiment Construction

[0041] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:

[0042] Aiming at the characteristics of the fast frequency hopping system signal, the present invention provides a multi-carrier variable rate receiving and processing method to realize the receiving and processing of the fast frequency hopping system signal. In the fast frequency hopping system, multiple carriers are used to transmit information, and there may be multiple rates of the original information. If there are P different original information, they are respectively f b,1 , f b,2 ,...,f b,P , the fast frequency hopping system encodes and MFSK modulates each original information respectively, the number of modulation frequencies of the MFSK modulation is M, and the symbol rate after modulation is f c,1 , f c,2 ,...,f c,P , and the jump speed is f h , the diversity numbers corresponding to each symbol rate are Then modulate th...

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Abstract

The invention discloses a multi-carrier variable rate receiving and processing method in a fast frequency hopping system. According to the characteristics of the fast frequency hopping system, the method performs diversity combination for different information rates in multiple carriers, and completes data demodulation at different rates. . First, the received signal is digitally split and converted into a serial output data stream of the same carrier, and then the serial data stream is divided into multiple parallel data according to the carrier group through serial-to-parallel conversion, and then multiple parallel processing modules are used. Perform interleaving and diversity combination demodulation processing on each signal, and then decode the demodulated data, so as to realize the receiving and processing of the fast frequency hopping system signal. The present invention can adapt to different carrier numbers and rate files, rationally configure resources, have flexible implementation, strong scalability, easy on-board implementation, and is suitable for receiving and processing fast frequency hopping system signals under different interference environments.

Description

technical field [0001] The invention relates to communication anti-interference technology, in particular to a multi-carrier variable-rate receiving and processing method in a fast frequency hopping system. Background technique [0002] Frequency hopping technology is a spread spectrum technology, which is the most widely used communication method in the field of communication anti-interference. It has strong anti-interference, anti-fading, and anti-interception capabilities. [0003] For the fast frequency hopping system, the frequency hopping rate is greater than the channel symbol transmission rate, and each information symbol is transmitted using multi-hops, that is, each symbol is transmitted at different frequency points, and time diversity and frequency diversity are used at the same time to provide stronger The anti-jamming ability ensures the minimum reliable communication of military communication satellites, and can realize various user access, low-speed data and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/10H04B1/713H04B1/715H04B7/185
Inventor 许鹏飞樊宁波李加洪刘吉侴胜男
Owner XIAN INSTITUE OF SPACE RADIO TECH
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