Research Of The Fuse Technique Based On Software Radio

A novel technique scheme of software and hardware communion in underwater weapon fuse system based on Software Radio conception is presented, along with hardware system design and realization. The research on adaptive threshold of constant false alarm rate(CFAR) detection technique is carried out in hardware.The main contributions in this thesis are as follow:1. Hardware and software communion technique scheme on the basis of Software Radio conception is proposed, the corresponding system model is built.2. The signal-receiving and digital signal processing hardware are designed and completed, which adopt the master-slave CPU structure composed of microcomputer unit(MCU) and DSP, So the system performance is improved.3. Two detection algorithms such as Welch's spectrum estimation and2--dimensional spectrum method are studied and detection results underdifferent ratios of signal to noise(SNR) are calculated.4. A software module based on adaptive threshold of CFAR detection algorithm is completed.