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Lowfrequencydigitalphasetester
- 低频数字式相位测试仪，本设计给出了以凌阳16位单片机Spce061A为核心的数字式相位测量的基本原理与实现方案。该系统由相位测量仪、数字式移相信号发生器和移相网络三个模块构成，分别由两块单片机独立地实现控制与显示功能。采用DDS技术生成两路正弦波信号，并通过改变存储器中数据读取的起始地址来实现数字移相的功能，用Ф-T变换技术来实现相位差的测量，使得测量分辨率精确到0.1º ，测得的频率与相位差值送入LCD进行显示，加入红外键盘以及语音播报的功能，使得系统具有智能化、人性化的特色。-Low
ppsk
- M=4的数字相位调制系统相位键控PSK的Monte Carlo仿真-M = 4 of the digital phase shift keying PSK modulation system phase of the Monte Carlo simulation
bpskj
- 二进制相移键控(键控调制方法)，樊昌信《通信原理》内容-Binary phase shift keying (keying modulation method), Fan Changxin " Communication Theory" content
bpskm
- 二进制相移键控(模拟调制方法)，樊昌信《通信原理》内容-Binary phase shift keying (Analog modulation methods), Fan Changxin " Communication Theory" content
dqpsk
- 四进制差分相移键控(键控调制方法)，樊昌信《通信原理》内容-Four M-ary differential phase shift keying (keying modulation method), Fan Changxin " Communication Theory" content
qpskdemo23
- quadrature phase shift keying demodulation technique
qpsk2
- qpsk2仿真代码 正交相移键控，是一种数字调制方式。-simulation code qpsk2 quadrature phase-shift keying is a digital modulation methods.
BPSK
- 数字通信中的数字调制方式之BPSK（二进制相移键控）调制和解调的m语言，-Digital communication in the modulation of the number of BPSK (binary phase shift keying), m language
Rayleigh_1
- 通信系统中基于MATLAB的四相移相键控调制的仿真-MATLAB-based communication system of the four-phase phase shift keying modulation simulation
DDS-baseddesignofthesinusoidalsignalgenerator
- 本设计采用AT89552单片机，辅以必要的模拟电路，实现了一个基于直接数字频率合成技术(DDS)的正弦谊号发生器。设计中采用DDS芯片AD9850产生频率1KHZ~10MHZ范围内正弦波，采用功放AD811控制输出电压幅度， 由单片机AT89S52控制调节步进频率1HZ。在此基础上，用模拟乘法器MC1496实现了正弦调制信号频率为1KHZ的模拟相度调制信号；用FPGA芯片产生二进制NRZ码,与AD9850结合实现相移键控PSK、幅移键控ASK、频移镇键FSK。-AT89552 the singl
BPSK1
- Phase shift keying , M=2 modem
pnseed
- calculates Linear Feedback Shift Register(LFSR) mask and seed values for a specific phase shift.
BlindEstimation
- This file contains a matlab file for blind carrier estimation which compute the phase and frequency offset of carrier due to Doppler shift.
Phaseshiftcontrolandzerocrossingdetection
- 移相控制与过零检测,可控硅过零检测电路分析-Phase-shift control and zero-crossing detection, zero-crossing detection circuit SCR analysis
phasevocoder
- 基於相位平移的語音編碼,可提供語音升調以及降調的功能-Based on the phase shift of the speech coding
codeunsymmetrical
- The analysis of unsymmetrical faults is similar to that of symmetrical faults, except that in the case of unsymmetrical faults, the three-phase power system is represented by its sequence networks i.e zero, positive and negative sequence. Also, the e
mpskfile
- MPSK matlab file. for the simulation of mpsk modulation technique. which is digital technique based on phase shift keying-MPSK matlab file. for the simulation of mpsk modulation technique. which is digital technique based on phase shift keying.....
BPSKinOFDM
- This phase shift keying modulation technique file to give basic idea how to do the psk modulation...... this file is very helpfull for all new peoples want to learn digital modulation-This is phase shift keying modulation technique file to give bas
bpsk
- This file related to the binary phase shift keying.which is digital mod technique...very basic technique to help how to do the digital mod-This file related to the binary phase shift keying.which is digital mod technique...very basic technique to hel
qpsk_fading
- this file is related to qpsk quadrature phase shift keying mod. in fading channel..which is helpful in desgining a channel with qpsk mod technique