In communication systems channel poses an important role. channels can convolve many different kind of distortions to our information. In perticular w...
說明:1,测试交流电源(Test AC Power Supply):A.中国(China):AC 220V+/-2%50Hz+/-2%B.美国(United States of America):AC 120V+/-2%60Hz+/-2%。C.英国(Britain):AC 240V+/-2%50Hz...