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audiofile-0_2_6
- The Audio File Library provides a uniform programming interface to standard digital audio file formats. This library allows the processing of audio data to and from audio files of many common formats (currently AIFF, AIFF-C, WAVE, NeXT/Sun
QPSK.rar
- QPSK是一种二维调制技术，其中水平轴称为同相轴，垂直轴称为正交轴，分别对应于星座图上的1和Q坐标。同相载波指载波本身，正交载波指相位旋转90度的载波1周。QPSK调制在实现时是采用正交调幅的方式，某星座点在1坐标上的投影去调制同相载波的幅度，在Q坐标上的投影去调制正交载波的幅度，然后将两个调幅信号相加就是所需的调相信号,QPSK is one kind of two-dimensional modulating technology, the horizontal axis is called
dp
- 正弦波，三角波，方波信号发生器程序，C语言编写，频率可调-Sine wave, triangle wave, square wave signal generator process, C language, frequency adjustable
sms7110
- Oxygen SMS7110 ActiveX Control的操作系统为Windows 95 98 NT及2000，支持NOKIA 3***/62**/71**/8***系列的GSM手机。它允许你发送文本和图片消息，读写缺省的SMS中心号码。控件可以和任何支持Active X的编程环境相融合（如，ASP。Microsoft Visual Basic，Microsoft Visual C ，Microsoft Access，Borland Delphi，Borland C Builder等）。适用
FIRlowpassfilter
- c语言实现fir滤波器，主要是程序部分，详细设计原理请参照有关资料-C language realizes fir wave filter, the main content is a procedure part, the detailed design principle please consult relevant materials
wscgensrc190
- 无线通信中各种常用信号产生程序，里面具有BPSK，MFSK，QPSK，白噪声等波形产生程序，声称的波形何以存储为Wav文件或直接输出到声卡！适合短波数据通信编程参考！-Wireless communication signals in a variety of commonly used procedures, which have a BPSK, MFSK, QPSK, of white noise such as waveform generation process, claiming t
基于DSP的FSK调制系统的C语言算法实现_史明泉
- 声波传输数据的方法。类似支付宝的声波付款。(Method of sound wave transmission)