Frequency hopping communication signal capturing method and device and computer storage medium

Abstract

The embodiment of the invention discloses a frequency hopping communication signal capturing method and device and a computer storage medium. The method can comprise the following steps: dividing a monitored target bandwidth into more than one monitoring frequency band according to a set monitoring bandwidth; sequentially moving each monitoring frequency band to a center frequency corresponding tothe monitoring bandwidth, and monitoring each moved monitoring frequency band according to a preset judgment strategy to obtain a frequency hopping frequency band corresponding to each moved monitoring frequency band and conforming to the judgment strategy; and generating a frequency hopping pattern in the target bandwidth according to the frequency hopping frequency band corresponding to each moved monitoring frequency band and conforming to the judgment strategy.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, device and computer storage medium for capturing frequency hopping communication signals. Background technique [0002] Frequency hopping communication system is a common anti-jamming communication system. In a hostile environment, as the two sides of the battle, such as Alice and Bob, when Alice uses a frequency hopping radio station, if Bob can capture the frequency hopping signal of Alice's unknown frequency hopping radio station, then the tactical formulation and victory of Bob's side will be of great help. [0003] The current common frequency-hopping signal acquisition scheme usually adopts the superheterodyne receiver used in fixed-frequency communication, that is, the frequency generated by the receiver is different from the signal received from the antenna by one frequency, and then mixed and passed through the band The additional frequency com...

AI Technical Summary

Problems solved by technology

After using a high-speed ADC for sampling, the sample rate is high and the amount of sample data is large, and polyphase decimation and filtering is required. The large amount of data brings many challenges to subsequent digital signal processing, which will cause high power consumption of the overall system. The problem of increasing the size of the system

Moreover, conventional frequency hopping signals generally have a bandwidth of several hundred MHz or even GHz, which requires very high ADCs, and high-speed ADCs are relatively expensive, resulting in an increase in system costs.

[0007] Therefore, the traditional design idea is that the digital processing module adopts the ADC+DSP+FPGA platform architecture, realizes the low-IF interconnection with the RF module through the ADC chip, and the RF channel adopts 2nd frequency conversion with harmonic filters, tuning filters, and IF filter banks To achieve the technical requirements related to radio frequency channels, these systems have disadvantages such as large volume, high power consumption, and large transmission data, which cannot meet the needs of future battlefields

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