The Study, Dsp-based Ground Moving Target Identification System

The seismic target identification system based on DSP is mainly discussed in the thesis. It consists of three parts, which are feature extracting of seismic signal and target identification realizing in DSP hardware, designing system circuit, programming software of system.The thesis, based on much data of seismic target analyses the necessary and feasibility of target identification using DSP technology. Then we design the software and hardware system of target identification, which can be realized real time collection and process of seismic signal using DMA. Accordingly, we study hardware miniaturization, lower-power, and anti-jamming technology. Besides, we accomplish the bootload of system using 16 bits collateral inducting mode.Based on the arithmetic theory of fix DSP, we accomplish the feature extracting arithmetic using zero-crossing and wavelet package analyses, and solve the nonlinear problem when replanting BP arithmetic to DSP, in order to insure the real time demand of system.Finally, we test the performance of system, and the result shows software and hardware designing satisfy the anticipative demand.