AM,FSK,PSK调制，自己修改参数,结果用PCM文件保存，以二进制数据读入...

手机密码。三星、摩托罗拉、西门子恢复出厂设置、爱立信新机回英语-phone password. Samsung, Motorola, Siemens resumed factory installed, Ericsson machine to the new English

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一个关于usb编程入门例子,开发一个usb driver需要做的基本步骤.-Getting Started on usb programming examples, the development of a usb driver needs to do the basic steps.

CDMA的写码资料！你看了就知道的！！关于写ENS码的资料！-the document of write code to CDMA, about write ENS code.

一个简单的服务器端应用程序，功能：监听客户端的连接请求，为客户端连接请求建立SOCHET队列，处理各客户端发送来的数据，并向相应的客户端发送应答消息，更新服务器的端口号-a simple server-side applications and functions : listening to the connecting client requests for client requests to establish SOCHET queue address the client to send data to the corresponding client send responses news update server port

从国外找到的通信程序的DELPHI源代码类,给大家学习一下,都是国内不多见的例子-from abroad to find the communication procedures of Delphi source categories, for everyone to learn about all domestic rare example

REI开发的NeoLauncher现在开源。希望高手继续完善！-REI is now open source development NeoLauncher. I hope you continue to improve!

QAM调制的基本原理 QAM调制实际上是幅度调制和相位调制的组合。相位 + 幅度状态定义了一个数字或数 字的组合。QAM的优点是具有更大的符号率，从而可获得更高的系统效率。通常由符号率 确定占用带宽。因此每个符号的比特（基本信息单位）越多，效率就越高。-QAM modulation of the basic principles are in fact QAM modulation amplitude modulation and phase modulation of the portfolio. Phase+ margin status defines a combination of numbers or figures. The advantage of QAM symbols are greater rate, thus the system efficiency will be higher. Symbol rate is usually determined by the occupied bandwidth. Thus each bit symbols (basic units of information) the more the higher the efficiency.

1)生成2KHz和8KHz的混合信号，使该信号通过上述滤波器，观察滤波前后的波形变化和频谱分布情况。 2) 在改信号中加入高斯白噪声，观察滤波前后的波形变化和频谱分布情况3) 将上述滤波器改为中心频率为100KHz的带通滤波器，信号源为带外的90KHz和带内的100KHz的混合正弦信号，。 4) 用M文件实现上述低通滤波器。 -1) 2KHz and 8KHz to generate the mixed-signal, so that the signal through the above-mentioned filter, filter before and after observation of the waveform and spectrum distribution of the changes. 2) add to the signal in white Gaussian noise was observed before and after filtering and spectral waveform changes in the distribution of 3) will be replaced by the above-mentioned filter center frequency of 100KHz band pass filter, the signal source for the band and the band of 90KHz 100KHz Sine of the mixed signals. 4) achieve the above-mentioned documents with M low-pass filter.

中软泰和融合通信平台白皮书-converged communications platform White Paper