新型散射信道测试机的设计与实现

摘要

Considering the importance and necessity of scatter channel test,a novel tester prototype is designed,through which the test data can be automatically saved in an unmanned mode.The components,operation principle and technical advantages of the tester prototype are introduced.Additionally,the SD card storage and carrier frequency adjustment techniques are analyzed in detail,including the schematic design and realization proposal.The capability test result of the tester prototype shows its good performance in test accuracy and detection capability as well as its stable and reliable auto storage function.%针对散射信道测试的必要性,设计了能够自动存储测试数据、达到无人值守状态的新型散射信道测试机。介绍了测试机的组成、工作原理和技术优势,详细剖析了基于Nios II的SD卡存储技术和载波频率校准技术的设计思路和实现方案,给出了新型散射信道测试机的性能测试结果。结果表明,新型散射信道测试机测试精度高、检测能力强,自动存储功能稳定可靠。