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spwminveter
- SPWM technique for Three Phase Inverter. Analysis fundamental improvement with respect to modulation index variation is done in simulation. Analysis can be done also for switching frequency variation for shifting the dominant harmonics
leidaxitongfangzhen
- 雷达系统仿真，发射信号为13位巴克码和线性调频混合调制的信号-Radar System Simulation, firing signal for the 13 Barker code modulation and linear frequency modulation of mixed signal
mod
- explain all the modulation techniques so u can understand them very clearly
ofdmreileigh
- 包括各种调制方式的比较，在加性噪声下以及在多径下的仿真，包括各种函数的代码（编码，调制，译码，解调，等一系列完整的函数）-Include a variety of modulation methods of comparison, in the additive noise as well as in multi-path simulation, including the various function codes (coding, modulation, decoding, demodul
AD9854
- AD9854允许输出的信号频率高达150MHZ，而数字调制输出频率可达100MHZ。通过内部高速比较器正弦波转换为方波输出，可用作方便的时钟发生器。-AD9854 allows the output signal frequency up to 150MHZ, and digital modulation output frequency up to 100MHZ. Through an internal high-speed comparator is converted to square
code
- 基于MCS-51单片机调频调相信号发生器 功能:A路能产生2~200HZ/分钟频率可调 @ B路能产生同A路相位滞后0~180读可调 @ 可以键盘设定频率和相位 @ 可以显示频率和相位 -Based on MCS-51 single-chip FM phase modulation signal generator function: A road can have 2 ~ 200HZ/minute frequency adjustable @ B road A road c
AP3101_584558[1]
- 基于BCD公司的AP系列芯片，本文介绍一种以最少外部元器件就能获得高效率的高频开关电源的设计方法，该电路在宽范围电压输入范围内，采取单端反激式电路，利用光耦反馈和脉冲宽度调制技术来实现横流稳压输出。-Based BCD company s AP series chip, this paper introduce a minimum of external components to get the high-efficiency high-frequency switching power’ d
msp43020
- 1. 采用电流型操作，并且根据外围电路的选择可以在50-100kHz高频下工作-circuit, the use optocoupler feedback and pulse width modulation technology to achieve regular output. Keywords: Switching Power Supply Single-ended flyback Voltage feedback Current-Mode PWM
GYT_220.9-2008
- CMMB__标准规范 GYT 220.9-2008 移动多媒体广播 第9部分：卫星分发信道帧结构、信道编码和调制.pdf-GYT 220.9-2008 standard CMMB__ Mobile Multimedia Broadcasting Part 9: Satellite sub-letters Road frame structure, channel coding and modulation. Pdf
dianlixitong
- 本文利用核心芯片TDA5051A，采用ASK（幅度键控）调制技术，建立电力线通信系统，实现数字信号在电力线上进行传输。 关键词:电力线通信 TDA5051A 调制解调器 -In this paper, the core chip TDA5051A, using ASK (amplitude shift keying) modulation technology, the establishment of power line communication systems, digital
MCCDMA2003
- MC-CDMA System Using Unitary Space-Time Modulation on Down-link Broadband Mobile Radio Communication
pwm
- Pulse Width modulation techniques for motor control.
modufang
- 各种调制仿真程序M语言源代码， 各种调制仿真程序M语言源代码，-Simulation Program for a variety of modulated M-language source code, a variety of modulation M simulation program language source code, a variety of modulation M simulation program language source code,
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
CDMAchannel
- 语音编码为信源编码，是将模拟信号转变为数字信号，然后在信道中传输。在数字移动通信中，语音编码技术具有相当关键的作用，高质量低速率的话音编码技术与高效率数字调制技术相结合，可以为数字移动网提供高于模拟移动网的系统容量。目前，国际上语音编码技术的研究方向有两个：降低话音编码速率和提高话音质。-Speech coding for source coding is the analog signal into a digital signal, and then in the channel trans
06603
- TIMS硬件实验报告，实现模拟信号SSB、AM、FM，以及数字信号ASK、PSK、FSK的调制与解调，包含完整的模块连接图-TIMS hardware test report, the realization of analog signal SSB, AM, FM, and digital signal ASK, PSK, FSK modulation and demodulation, the modules contain a complete map
DSPFPGAsdr
- 从硬件和软件两方面建立了基于DSP和FPGA的软件无线电平台。重点研究了该实验平台多模式 数字调制解调的硬件实现结构、软件实现结构和不同模式之间的切换等，充分体现了软件无线电系统的灵活性、 开放性和兼容性等特点。-From both hardware and software based on DSP and FPGA software radio platform. Focus on the experimental platform for multi-mode digital mo
practisereport
- OFDM(正交频分复用)技术实际上是MCM(Multi-Carrier Modulation，多载波调制)的一种。其主要思想是，将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰(ICI)。每个子信道上的信号带宽小于信道的相关带宽，因此每个子信道上的可以看成平坦性衰落，从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分，信道均衡变得相对容-OFDM (
3
- Word file for AM Modulation
qpsk_model
- QPSK调制解调模型 simulink仿真-QPSK modulation and demodulation simulink simulation model