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2下载：
相参脉冲串复调制信号，线性调频脉冲串复调制信号，线性调频步进频率脉冲串复调制信号，步进频率脉冲串复调制信号-String complex modulation signals coherent burst complex modulation signal, chirp, chirp stepping frequency bursts complex modulation signal, step frequency bursts complex modulated signals
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VB写的教学用的信号频率生成器的源代码，有的称为信号调制模拟器，用来模拟2ASK、2FSK信号的调制过程，可供娱乐或教学；全部用的VB的算法，对学习算法也有帮助 。-The frequency of the signal generator source code written in VB teaching, some called signal modulated simulator, used to simulate 2ASK, 2FSK signal modulation proc
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This a good example of how to create amplitude modulation with sampling frequency-This is a good example of how to create amplitude modulation with sampling frequency
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包括ask信号的发送接收全过程，包括调制解调，多节传输，频域时域的分析-Ask the signal transmission and reception of the entire process, including modulation and demodulation, the multi-cell transmission, the frequency domain to the time domain analysis
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单边带调制完整建模，实现了希尔伯特变换，DDS，上变频，正交调制-Single sideband modulation of a complete modeling, implementation of the Hilbert transform, DDS, on the frequency, quadrature modulation
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X射线机控制源代码主要对高频微焦点牙科X线机的高频逆变技术、高频变压以及灯丝电路控制原理进行了编写研究。通过程序代码对于管电压以及管电流的控制，采用脉冲宽度调节方式（PWM）实现输出电压和功率的调节。X射线机控制程序通过硬件电路的AD采样经直流逆变、高频变压器、倍压整流形成数字电路经计算机编译得到单片机能够识别的二进制代码来控制机器，其成像极为清晰并且球管发射出的软射线得到了很好的抑制，降低了漏射线量，提高了成像效率，使常规X射线机的结构形状多样化，具有体积小、重量轻、低辐射（其辐射量、漏射线量
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CC1000驱动源码,用于驱动底层，配置为曼码通信模式，三线配置接口，外部中断-// Device: CC1020
// System parameters:
// X-tal frequency: 14.745600 MHz Internal
// X-tal accuracy:+/- 5 ppm
// RF frequency A: 433.916 MHz Active Tx
// RF frequency B: 433.916 MHz Inactive Rx
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双边带的调制，可以改变调制信号频率，观测已经调制波形-Double sideband modulation, the modulation signal frequency can be changed, the observation has been modulated waveform
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相位的调制，可以改变调制信号频率，观测已经调制波形-Phase modulation, can change the frequency of modulation signal, the observation has been modulated waveform
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噪声的调制，可以改变调制信号频率，观测已经调制波形-Noise modulation can be changed to the modulating signal frequency, the observation has been modulated waveform
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数字通信中的多普勒频偏估计技术研究，采用开环大频偏估计算法，调制是4/pi_DQPSK-Doppler shift estimation in digital communications technology, the use of open-loop large frequency offset estimation algorithms, modulation is 4/pi_DQPSK
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To study the digital modulation techniques such as on-off keying (OOK), amplitude shift keying (ASK),frequency shift keying (FSK), binary phase shift keying (BPSK) and phase shift keying (PSK) pass band modulation and demodulation using MATLAB Simuli
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基于FPGA的DDS，产生任意频率的正弦波，并且加入am调制-Generate any frequency sine wave, and join am modulation based on FPGA DDS
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Amplitude-shift keying (ASK) is a form of modulation that represents digital data as variations in the amplitude of a carrier wave.
Any din scheme uses a finite number of distinct signals to represent digital data. ASK uses a finite number of ampli
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本程序是锁相环的仿真程序，具有接收端载波同步的功能。注释详尽，程序规范。发端的调制方式有单载波调制，BPSK调制，QPSK调制可供选择。程序中有星座图，锁相环的频差、相差图，以及解调后的基带波形。-This program is a phase-locked loop simulation program, the with carrier synchronization receiving end function. Notes detailed program specifications.
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常用跳频，扩频信号的调制与解调，主要用于通信及数字信号处理领域-Commonly used frequency hopping, spread spectrum modulation and demodulation of the signal, mainly used in the field of communications and digital signal processing
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用AM调制产生射频信号，并设计巴特沃斯滤波器对其进行滤波处理-AM modulation to generate radio frequency signals, and design Butterworth filter its filtering process
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调制识别是非协作通信中的关键技术之一，在电子对抗、软件无线电等领域
应用十分广泛。该过程介于信号检测与解调之间，由于对传输信号没有过多的先
验信息以及在接收端有很多未知的参数，例如：信号功率，载波频率和相位偏移，
时间信息等，导致对调制方式的盲识别是一项很困难的任务。此外，实际中存在
多径衰落、频率选择性和时变信道等问题，使得这项任务变得更具有挑战性。
-The modulation recognition is one of the key technologies of
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ml时频同步算法，基于OFDM系统的。子载波数 128
位数/ 符号 2
符号数/ 载波 100
训练符号数 0
循环前缀长度 8 (1/16)*T
调制方式 4-QAM
多径信道数 3
IFFT Size 128
信道最大时延 2-ml frequency synchronization algorithm, based on the OFDM system. Digit of the number of subcarriers 128 /2
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frequency modulator, in Simulink simulation system modulation fm.
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