短波信道探测系统中DSP模块的设计与实现

Design and Implementation of DSP Module in High Frequency Channel Sounding System

DSP模块作为短波信道探测系统的核心模块,对系统的性能起着举足轻重的作用。主要对DSP与GPS导航电文接收、CPLD、ADC/DAC、USB等模块之间的连接电路以及DSP中断电路进行具体设计,给出了原理图并用硬件实现。实验测试结果表明,所设计电路工作稳定,性能良好,能满足短波信道探测的需要。

As the kernel module in high frequency （HF） channel sounding system, the DSP module is of great importance to the performance of the system. Therefore, the connection circuits between DSP and GPS, CPLD, ADC/DAC and USB modules were designed as well as the interrupt circuit of DSP. The schematic diagram of the DSP module is provided and implemented by hardware circuit. The test result shows that the circuit designed works well which can meet the requirement of HF channel sounding.