Reconnaissance and interference integrated system

Abstract

The invention discloses a reconnaissance and interference integrated system, and a method comprises the following steps: dividing a received signal into sub-bands through a front-end analog channelization structure, performing down-conversion processing to obtain a baseband signal, mixing the baseband signal with a frequency mixing sequence, and performing summing to obtain a summed signal, so that the data volume is greatly reduced, and the sampling data rate is reduced; enabling the summed signal to be subjected to interference of a specified interference pattern to obtain an interference signal, so that the interference bandwidth is reduced, and the interference can still cover the full frequency band of the reconnaissance signal; mixing the interference signal with the periodic mixingsequence to obtain an interference mixing signal; performing up-conversion processing on the interference mixing signal to obtain an interference modulation signal, so the frequency spectrum of the interference signal is shifted to each sub-band; enabling the interference modulation signal to pass through a filter bank and performing summing to obtain a final interference signal. Compared with a traditional reconnaissance receiver and a jammer, the system can reduce the sampling rate, simplify the transmitting and receiving channel structure and achieve multi-band multi-signal simultaneous interference.

Description

technical field [0001] The invention belongs to the technical field of electronic countermeasures, and relates to an integrated reconnaissance and jamming system, in particular to an integrated reconnaissance and jamming system adopting an MWC structure. Background technique [0002] Most of the current radar reconnaissance and jamming technologies adopt a large-bandwidth reconnaissance and jamming method that covers the entire frequency band of the radar signal. Among them, radar jamming technology is divided into two types, including suppressive jamming and deceptive jamming. The radar reconnaissance and the above-mentioned interference methods require the receiver and the jammer to work in a large bandwidth, which requires the system to use high-speed AD sampling and high-speed DA conversion, or use a complex channel structure to achieve broadband reconnaissance and interference. There are defects such as high sampling rate and complex structure of transmitting and recei...

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Problems solved by technology

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a method that can reduce the sampling rate, simplify the transmission and reception channel structure, realize simultaneous interference of multiple frequency bands and multiple signals, reduce the data rate of signal sampling, and realize the detection of large bandwidth signals. An integrated reconnaissance and jamming system with MWC structure is used to overcome the defects of high sampling rate and complex structure of transmitting and receiving channels in the existing technology

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