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system view 实例模型包含数字调制QPSK,QAM.RICE衰落信道的仿真 数字频率合成器 线性移位寄存器 -system view instance of the model consists of digital modulation QPSK, QAM.RICE fading channel simulation of digital frequency synthesizer linear shift register, etc.
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Title : Implementation of quadrature modulation and demodulation
Design Object : By implementing quadrature modulation and demodulation of analog signals in digital signal processing, students will have better understanding of sampling and frequenc
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ASK,FSK,PSK信号调制及用FFT法进行频率估计-ASK signal modulation and the FFT algorithm with frequency estimation
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本人收集的资料2，有多径信道、多普勒频移，瑞利、RICE(莱斯)信道等仿真，QPSK调制和解调等，交织编码。程序经过本人测试，绝对可用，并附上本人测试说明和仿真图像结果-I collected information on 2, how-path channel, Doppler frequency shift, Rayleigh, RICE (Rice) channel, such as simulation, QPSK modulation and demodulation, etc.,
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nRF24l01 NRF系列模块的数据收发控制
1） 2.4GHZ全球开放ISM频段免许可使用
2） 最高工作速率2Mbps,GFSK高效调制
3） 125个频道满足多点通讯和跳频通讯需求
4） 1.9-3.6V工作，低功耗，待机模式仅1uA.
5） 双通道数据接收，内置环行天线，体积仅17*34mm,通信距离在100m之内，软件编简单。
7） 内置硬件8/16位CRC校验，收发中断标志，每次可发28字节
-nRF24l01 NRF series data trans
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This the book "Signals and Systems - made ridiculously simple" by J. Karu in djvu file format. It gives an excellent introduction to system theory and covers all related concepts: Continuous-Time Systems, Frequency Domain, Laplace Transform, Continuo
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OFDM整个系统结构，包括上下变频，多普勒频移，以及星座图调制和系统参数计算。-OFDM structure of the entire system, including upper and lower frequency, Doppler frequency shift, as well as the modulation constellation diagram and system parameters.
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红外测试程序，用单片机通过发射管发射38K的调制频率码，由一体化接收并解码由发光管显示。
正常情况下，由于反射和高灵敏度接收，LED4（P1.3)一直闪烁，可以用黑色纸片完全遮挡接收头使之不能接收到发射管的信号，这是LED4熄灭。说明功能性正常-Infrared testing procedures, with the launch tube through the launch of single-chip 38K code modulation frequency, from integ
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介绍了三种常见的数字信号处理过程的实现, 包括频率合成、调制和调制,并进行仿真和硬件下载验证。-Introduced three types of common digital signal processing to achieve the process, including frequency synthesis, modulation and modulation and download simulation and hardware verification.
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AD9954是美国AD公司采用先进的DDS技术生产的高集成度频率合成器，它能产生200MHz的模拟正弦波。文章介绍了AD9954的基本特点和引脚功能，分析了其内部结构和工作原理，给出了AD9954在高速调制信号系统中的应用方案。-AD9954 is AD using advanced DDS technology to produce a high level of integration of the frequency synthesizer that can generate the an
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本设计采用AT89S52为控制核心，以DDS芯片AD9850产生频率可以自动可调的正弦扫频信号，实现了全频范围和特定范围内自动搜索和手动搜索，并且鉴别外来信号的调制方式：调频、调幅、等幅。通过单片机自动显示外来信号频率并存储，达到侦察接收机的性能要求。-AT89S52 the design for the control of the core, have a DDS chip AD9850 automatically adjustable frequency swept sine signal
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这是一个频分复用系统的数字处理方法，传送了2个wav文件，采样频率200kHz，2路载波的频率分别为44kHz，48kHz。整个代码涉及到wav文件的编码和解码，信号的数字滤波，调制解调。-This is a frequency division multiplexing system of digital processing methods, to send the two wav files, the sampling frequency of 200kHz, 2-carrier freq
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用单片机C51语言编写，含有按键可控，调制方式可选，液晶LCD12864显示中心频率的发射机模块；-C51 language with single-chip, which contains key control, optional modulation, liquid crystal display center LCD12864 frequency transmitter module
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基于 OFDM的高速遥传电缆调制解调器设计 基于 OFDM的高速遥传电缆调制解调器设计-Abstract : In order to meet t he demand of high data volume for imaging tool s , a cable Modulator/ De2
modulator is investigated and developed since it is t he key to any high2speed cable t ransmission s
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一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模
块，并统括系统性能的仿真验证了系统设计的可靠性。
-A relatively complete simulation of the OFDM communication system design, including coding, modulation, IFFT, frequency up and down, Gaussian channel
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2个程序，MATLAB设计的一个滤波器，将含3个频率分量的信号通过该滤波器，滤除2个高频分量，得到只含低频的信号。
单边带信号调制，用MATLAB实现，是学习信号调制的一个好例子。-Two procedures, MATLAB design a filter, will contain three frequency components of the signal through the filter, filter out high frequency components of two
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国外的详细的OFDM设计过程文档，对学习OFDM非常有帮助，并且有仿真结果。-This report discusses the design and implementation of an OFDM modem for a simplex communication
between two PCs over a frequency selective channel. First a brief introduction is
provided by explaining the b
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内容：
*红外测试程序，用单片机通过发射管发射38K的调制频率码，由一体化接收并解码由发光管显示。
*正常情况下，由于反射和高灵敏度接收，LED4（P1.3)一直闪烁，可以用黑色纸片完全遮挡接收头使
*之不能接收到发射管的信号，这是LED4熄灭。说明功能性正常
-Content:* IR test program, launched with the microcontroller through the launch tube of the modulation freq
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水下ns2 UnderWaterMiracle: Underwater Channel, PHY and MAC for NS-MIRACLE .-UnderWaterMiracle: Underwater Channel, PHY and MAC for NS-MIRACLE .
escr iption: we have developed a module for ns-miracle that allows a fully detailed simulation of the unde
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fsk modulation Frequency shift keying (FSK) is the most
common form of digital modulation in the
high-frequency radio spectrum, and has
important applications in telephone circuits.
This article provides a general tutorial on FSK
in its man
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