多通道高速数字处理机设计  

Design of Multi-channel High Speed Digital Processor

作　　者：王帅涛[1] Wang Shuaitao(China Airborne Missile Academy, Luoyang 471009,China)

机构地区：[1]中国空空导弹研究院,河南洛阳471009

出　　处：《计算机测量与控制》2019年第2期229-232,共4页Computer Measurement &Control

摘　　要：为了实现多目标回波信息处理,设计了一种四通道高速采样的信号处理机;实现以K7芯片为核心的数字处理平台及多种通信方式,通过高速ADC将回波信号数字化,利用巴克码脉内1调制,在保持目标速度分辨率的同时提高了距离分辨率;通过简化数字下变频提高资源利用率,并仿真了多目标识别处理过程;对处理机的测试表明,实现了1.22mV静态噪声和64dB动态范围。To realize the processing of multiple target echoes,a design of four channels high speed digital processor is proposed.The digital processing platform with K7 chip and various communication methods were implemented,Digitizing the echo signal through high speed ADC,the target’s distance resolution was improved through waveform design of Barker intra-pulse modulation.The resource utilization was improved by simplifying digital down conversion process,and the processing of multi-target recognition was simulated.The test results show the static noise is 1.22mV and range of work is 64dB.

关 键 词：多通道高速采样 数字处理机 数字下变频 脉冲压缩 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]