Frequency estimation by searching the pure tone frequency with 2-pole filter
Frequency estimation by searching the pure tone frequency with 2-pole filter...
Frequency estimation by searching the pure tone frequency with 2-pole filter...
DTMF tone detector...
telcobridges tone develop...
tone encode and decode...
this is a simple telephone dial tone...
实现分频,低通1khz 中1到5khz,高5到20khz...
Frequency Modulation...
frequency multiplier...
·LPC系列单片机用软件的方法产生DTMF信号...
Time-Frequency Toolbox,其中包含一些常用的matlab程序,很好用的...