Short wave receiving and sending integration digital signal processing module based on delayed diversity

Abstract

The invention provides a short wave receiving and sending integration digital signal processing module based on delayed diversity. The short wave receiving and sending integration digital signal processing module based on the delayed diversity comprises six analogue / digital (A / D) chips, two down-conversion chips, six up-conversion modules, a field programmable gate array (FPGA) chip, a digital signal processor (DSP) chip and a compact peripheral component interconnect (CPCI) bus, wherein six A / D chips are respectively connected to the two down-conversion chips, outputs of the two down-conversion chips are connected to the FPGA chip, the FPGA chip and the CPCI bus are respectively connected with the DSP chip to carry out data interaction, and outputs of the six up-conversion modules are connected with the FPGA chip. According to the short wave receiving and sending integration digital signal processing module, stimulation and receiving of six short wave channels are achieved, delayed diversity technology is adopted, and communication transmission gain and antijamming capability can be improved. In addition, a CPCI connector is adopted, and therefore generality and compatibility of the module can be improved.

Description

technical field [0001] The invention relates to the field of electronic circuits, and in particular relates to a delay diversity-based shortwave transceiver integrated digital signal processing module. Background technique [0002] In the wireless communication environment, channel fading is the main factor affecting the signal quality, and the multi-antenna diversity method can effectively resist the fading of the wireless channel and provide reliable information transmission for the communication system. The basic principle of multi-antenna diversity technology is to carry the signal copies of the same information through multiple channels such as space and frequency, and combine the energy of multiple signals according to certain rules. The transmit and receive diversity technologies in the multi-antenna diversity technology can be Obtain higher diversity gain. Among them, the delay diversity technology in transmit diversity is essentially to artificially manufacture a d...

AI Technical Summary

Problems solved by technology

However, in some existing short-wave communication systems, diversity technology and coding technology are often divided into different devices, which cannot achieve integrated design, and it is difficult to maximize the communication gain of the system

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