Multicarrier variable rate receiving processing method in fast frequency hopping system

Abstract

The invention discloses a multicarrier variable rate receiving processing method in a fast frequency hopping system, which performs diversity combination on different information rates in multiple carriers according to characteristics of a fast frequency hopping system, and completes the data demodulation of different rates. The method comprises: performing digit branching treatment on received signals; converting the signals into a data flow serially outputted by same carrier wave data; performing serial-to-parallel conversion and diving a serial data flow into a plurality of paths of parallel data according to carrier groups; employing a plurality of parallel processing modules to perform interleaving and diversity combination demodulation on each path of signals; and decoding demodulated data, thereby realizing the receiving processing of signals of a fast frequency hopping system. The method can adapt for different carrier wave numbers and rate gears and perform reasonable resource configuration, is flexible to realize, has strong scalability, is easy to realize, and is suitable for the receiving processing of signals of a fast frequency hopping system 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 ...

AI Technical Summary

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

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