| DSP(Digital Signal Processor) is based on VLSI and computer technologies, and is applicable to high-speed digital signal processing. Nowadays it is widely used in science research, military science and consumer electronics. Recent years, a series of DSP courses were opened in domestic colleges and universities to fulfill the demand of science and technology development in China.This paper would start from the request of current research and DSP experiment teaching, carry out the software system research of the DSP experimental platform. Thorough research has been done to optimize the basic hardware user interface program of each module of the platform. It has improved the stability of the platform modules. Such as the BER of UART module is greatly reduced, LCD module doesn't display messy code and the precision of AD sampling has been increased etc. And on this basis, we constructed an audio processing system. This system can collect, display, record and process voice signal. Then this treatise expounds a frequency-hopping communication system module to work with our experimental platform. Including software design, hardware design and FPGA design. This module operates in the mode of frequency hopping spread spectrum(FHSS), with exquisite circuit layout, synchronization arithmetic and error correction, signal could be transmitted and received ideally by this module. And it has the ability of adaptive anti-jamming to keep away from single narrowband jamming during communicating. The FHSS module could also be jointed with other modules of the platform or even other systems with opening standard interfaces to take advantage of resources adequately. |
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