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[通讯编程] QAMTransmissionThroughaCompanding
说明:Abstract-The effect of the companding process on QAM signals has been under investigation for the past several years. The compander, included in the PCM telephone network to improve voice performance, has an unusual affect on digital QAM data<雨笑了> 在 2008-10-13 上传 | 大小:1.03mb | 下载:0
[软件工程] dianzishejidasai
说明:2003年全国电子设计大赛课题分析,包括简易频率计,相位测量仪等。<erinandherry> 在 2008-10-13 上传 | 大小:892.64kb | 下载:0
[嵌入式/单片机编程] dipinshuzixiangweiceliangyi
说明:低频数字式相位测量仪,采用了锁相技术、CPLD等技术<erinandherry> 在 2008-10-13 上传 | 大小:14.45kb | 下载:0