psk

bpsk调制仿真，可直接用 1、数字调制方法 数字调制就是把数字基带信号的频谱搬移到高频处，形成适合在信道中传输的带通信号。基本的数字调制方式有振幅键控（ASK）、频移键控（FSK）、绝对相移键控（PSK）、相对（差分）相移键控（DPSK）。在接收端可以采用想干解调或非相干解调还原数字基带信号。 数字信号的传输方式分为基带传输和带通传输。然而，实际中的大多数信道（如）无线信道具有丰富的低频分量。为了使数字信号在带通信道中传输，必须用数字基带信号对载波进行调制，以使信号与信道的特性相匹配。(1, digital modulation method Digital modulation is the transfer of the spectrum of a digital baseband signal to a high frequency to form a bandpass signal suitable for transmission in the channel. The basic digital modulation methods are amplitude keying (ASK), frequency shift keying (FSK), absolute phase shift keying (PSK), and relative (differential) phase shift keying (DPSK). At the receiving end, the digital baseband signal can be restored by using dry demodulation or non-coherent demodulation. Digital signal transmission methods are divided into baseband transmission and bandpass transmission. However, most channels in practice, such as wireless channels, have rich low frequency components. In order for a digital signal to be transmitted in a band channel, the carrier must be modulated with a digital baseband signal to match the signal to the characteristics of the channel.)

ptz 云台控制软件, 内带C++ 源码(ptz PTZ control software, which brought C++ source)

说明：  一种ldpc编码方法，非常的实用，简洁，快速。侵权删(a method)

TDMA simulation using OPNET modeler

扩频通信系统的跳频 matalab源代码，源程序。(Spread spectrum communication system of frequency hopping matalab source code, the source program. )

ofdm源程序。正交频分复用(OFDM) 的源代码。(OFDM source program. The source code of the orthogonal frequency division multiplexing (OFDM).)

移动通信中的智能天线系统源代码,波束面向用户,使用空间滤波和波束零陷技术.(Mobile communications in the smart antenna system source code, user-oriented beam, the use of spatial filtering and beamforming technology Null.)

说明：  实现BPSK的载波同步，采用的方法是锁频环，最大似然法频率估计(BPSK carrier synchronization is realized,the method is frequency - locked loop and maximum likelihood frequency estimation)

DL/T645-2007清晰文本版，可以CTRL+F(DL/T645-2007 clear text version, you can CTRL+ F)

用UWB技术实现定位的程序，定位精度高达10cm，STM32作为主控单元(UWB technology to achieve positioning procedures, positioning accuracy of up to 10cm, STM32 as the main control unit)