针对雷达IQ光纤数据流高速、实时传输的问题,基于Stratix II GX系列高性能FPGA和CPCI标准总线等硬件设备,采用数据率自动判别、乒乓缓存和计算机实时中断处理等关键技术,设计了一种雷达IQ光纤数据采集及传输系统。介绍了系统的组成和设...针对雷达IQ光纤数据流高速、实时传输的问题,基于Stratix II GX系列高性能FPGA和CPCI标准总线等硬件设备,采用数据率自动判别、乒乓缓存和计算机实时中断处理等关键技术,设计了一种雷达IQ光纤数据采集及传输系统。介绍了系统的组成和设计原理,并对系统的硬件、FPGA和软件设计进行了描述。经实际工程验证,该数据采集及传输系统性能稳定。展开更多
Fiber-optic hydrophone (FOH) is a significant type of acoustic sensor, which can be used in both military and civilian fields such as underwater target detection, oil and natural gas prospecting, and earthquake inspec...Fiber-optic hydrophone (FOH) is a significant type of acoustic sensor, which can be used in both military and civilian fields such as underwater target detection, oil and natural gas prospecting, and earthquake inspection. The recent progress of FOH is introduced from five aspects, including large-scale FOH array, very-low-frequency detection, fiber-optic vector hydrophone (FOVH), towed linear array, and deep-sea and long-haul transmission. The above five aspects indicate the future development trends in the FOH research field, and they also provide a guideline for the practical applications of FOH as well as its array.展开更多
文摘针对雷达IQ光纤数据流高速、实时传输的问题,基于Stratix II GX系列高性能FPGA和CPCI标准总线等硬件设备,采用数据率自动判别、乒乓缓存和计算机实时中断处理等关键技术,设计了一种雷达IQ光纤数据采集及传输系统。介绍了系统的组成和设计原理,并对系统的硬件、FPGA和软件设计进行了描述。经实际工程验证,该数据采集及传输系统性能稳定。
基金The authors would like to acknowledge the support of the National Natural Science Foundation of China(Grant Nos.61775238,61705263,and 61705262).
文摘Fiber-optic hydrophone (FOH) is a significant type of acoustic sensor, which can be used in both military and civilian fields such as underwater target detection, oil and natural gas prospecting, and earthquake inspection. The recent progress of FOH is introduced from five aspects, including large-scale FOH array, very-low-frequency detection, fiber-optic vector hydrophone (FOVH), towed linear array, and deep-sea and long-haul transmission. The above five aspects indicate the future development trends in the FOH research field, and they also provide a guideline for the practical applications of FOH as well as its array.
