【作者】 张健；

【导师】 王海燕；

【作者基本信息】 西北工业大学 ， 检测技术与自动化装置， 2003， 硕士

【摘要】 本文结合软件无线电理论的设计思想，提出了基于软件无线电的水中兵器引信系统的共享软、硬件的技术方案，进行了硬件系统设计与实现，并在硬件平台上完成了自适应门限CFAR检测技术的研究。 作者在论文中所做的工作和创新点主要包括以下几个方面： 1．提出了基于软件无线电的水中兵器引信系统的共享软、硬件技术方案，建立了系统软、硬件模型。 2．设计并实现了信号接收平台、数字信号处理平台，采用了单片机+DSP主从CPU的结构，提高了系统性能。 3．研究了Welch法功率谱估计和2 1/2维谱估计的检测技术，给出了不同信噪比下的检测结果，确定了系统采用的信号处理方法。 4．研究了自适应门限CFAR检测技术，完成了自适应门限CFAR检测算法的软件检测模块。更多还原

【Abstract】 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.更多还原