Shortwave adaptive array processor based on compact peripheral component interconnect (CPCI) bus

Abstract

The invention discloses a shortwave adaptive array processor based on a compact peripheral component interconnect (CPCI) bus. A shortwave adaptive array controller comprises four radio frequency modules which are connected in parallel, a master control module, an adaptive array processing module and a frequency synthesis module, wherein all the above modules are connected with the CPCI bus; each radio frequency module is the module which performs filtering and frequency conversion on two shortwave signals, generates intermediate frequency signals, and transmits the intermediate frequency signals of each channel to the adaptive array processing module for processing; the adaptive array processing module comprises an analogue-to-digital (A / D) converter and a weighted processing module; the adaptive array processing module is the module which obtains signal output by connecting eight intermediate frequency signals with the A / D converter, connecting the weighted processing module and performing linear combination; the master control module connects the adaptive array processing module and the monitoring module through the CPCI bus and controls the states of the adaptive array processing module and the monitoring module; and the frequency synthesis module is the module which generates and provides a clock signal and a mixing signal of each signal. The shortwave adaptive array processor receives the signals of eight receiving channels, performs adaptive processing uniformly, and improves system receiving gain.

Description

technical field [0001] The invention belongs to electronic circuit design, in particular to a short-wave adaptive array processor based on CPCI bus. Background technique [0002] Due to the existence of space-time fading in short-wave communication, the communication effect is often poor. However, the gain of short-wave reception can be improved by means of an adaptive array. In some existing short-wave multi-channel receivers and controllers, only the signal of a single channel can be processed, and each channel is independent of each other. The adaptive antenna array can accurately identify the direction of the wireless signal transmission source, and at the same time, by forming a deep zero point in the interference direction, other interference signals can be eliminated, and useful signals can be selectively amplified. Contents of the invention [0003] The object of the present invention is to propose a shortwave adaptive array processor based on the CPCI bus, which...

AI Technical Summary

Problems solved by technology

In some existing short-wave multi-channel receivers and controllers, only the signal of a single channel can be processed, and each channel is independent of each other

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