Description: 这是在matlab下实现的包络检波算法。先对信号进行调制，然后进行包络检波。-This is achieved under matlab envelope detection algorithm. First signal modulation, and then proceed to the envelope detector. Platform: |
Size: 26624 |
Author:刘天宇 |
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Description: 有关信号的调制，解扩解调的主要的时间同步方面的程序
-On the signal modulation, demodulation despreading the main time synchronization procedures Platform: |
Size: 6675456 |
Author:飞天 |
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Description: 该代码完成了通信系统中的BPSK调制的仿真过程。-The code to complete the communication system simulation BPSK modulation. Platform: |
Size: 43008 |
Author:xiaolong |
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Description: These files in Matlab implement a conventional DS -CDMA detector using QPSK modulation and matched filters in the receiver.-These files in Matlab implement a conventional DS-CDMA detector using QPSK modulation and matched filters in the receiver. Platform: |
Size: 3072 |
Author:Saurabh |
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Description: 小学期的源程序
1．试编MATLAB程序。信号 sinc(10*t),-2<=t<=2
m(t)=
0,其它
用100hz的载波来产DSB信号并解调。完成下列工作：
画出已调信号；
求已调信号的频谱，并用图像表示。
画出解调信号；
求解调信号的频谱，并用图像表示。
2．信号
sinc2(100t),|t|≤t0
m(t)=
0, 其它
采用频率调制调制为1000HZ的载波。频偏常数为kf=50,t0=0.2。
注：（求和代替积分）
3．信号
2, t0/3>t>0
m(t)= -6, t0/3<=t<2*t0/3
0, 其它
t0=0.15,使用AM调制和包络检波解调.-Primary phase of source 1. Test procedures for MATLAB. Signal sinc (10* t),-2 < = t < = 2 m (t) = 0, the other with the 100hz signal carrier to the middle class and DSB demodulation. To complete the following tasks: Draw has been transferred signal for the spectrum signals have been adjusted, and image representation. Draw demodulation signal solving transfer spectrum signal, and image representation. 2. Signal sinc2 (100t), | t | ≤ t0 m (t) = 0, the other the use of frequency modulation of the carrier modulation for 1000HZ. Offset constant kf = 50, t0 = 0.2. Note: (sum in lieu of points) 3. Signal 2, t0/3> t> 0 m (t) =-6, t0/3 < = t < 2* t0/3 0, other t0 = 0.15, the use of AM modulation and demodulation envelope detector. Platform: |
Size: 3072 |
Author:张静 |
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Description: 基于Matlab的伪码调相探测器系统仿真,毕业设计完整稿，适合做毕设的同学参考-Matlab code based on the pseudo-phase modulation detector system simulation, design of a complete draft graduation for students who do complete reference set Platform: |
Size: 841728 |
Author:王男 |
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Description: In this simulink model , baseband 8-ary PAM detection is simulated .A half-sine pulse shaped PAM signal is given as input to the detector.The received signal is matched filtered and down-sampled .The effects of symbol timing offset
can be seen by varying the phase of down-sampling
operation.The 8-ary PAM signal transmitted is recovered
at the detector output. Platform: |
Size: 8192 |
Author:quail |
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Description: In this simulink model , 16-QAM modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal
is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset
can be seen by varying the phase of down-sampling
operation.The signal transmitted is recovered
at the detector output.-In this simulink model , 16-QAM modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal
is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset
can be seen by varying the phase of down-sampling
operation.The signal transmitted is recovered
at the detector output. Platform: |
Size: 9216 |
Author:quail |
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Description: In this simulink model , QPSK modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal
is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The signal transmitted is recovered at the detector output.-In this simulink model , QPSK modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal
is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The signal transmitted is recovered at the detector output. Platform: |
Size: 8192 |
Author:quail |
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Description: 通过分析8PSK 调制方式的载波恢复、定时恢复算法, 提出了一种适用于新一代数字卫星电视标准DVB S2
的全数字解调算法, 改进了相位频率检测( PFD) 算法以适合于8PSK 解调. 载波恢复采用频率检测( FD) 和相位频率
检测相结合的结构, 跟踪范围超过1 倍符号率. 采用Gardner TED 算法进行定时恢复.-By analyzing the 8PSK modulation carrier recovery, timing recovery algorithm is proposed for a new generation of digital television standard DVB S2 Satellite all-digital demodulation algorithm, improved phase-frequency detector (PFD) algorithm for 8PSK demodulation . carrier recovery using frequency detection (FD) and phase-frequency detector combined structure, tracking more than 100 times the symbol rate range. using Gardner TED algorithm timing recovery. Platform: |
Size: 199680 |
Author:赵亮 |
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Description: 这是在matlab下实现的包络检波算法法。先对信号进行调制，然后进行包络检波。
-This is the method of envelope detection algorithm under Matlab. First signal modulation, and then proceed to the envelope detector. Platform: |
Size: 26624 |
Author:防止 |
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Description: 计算成组滑动的滑窗检测器的最佳门限已知: 击中数N = 128, 组宽n = 8，PF =
10¡ 6，PD = 90 假设以下条件:
(a) 信号不起伏
(b) 忽略天线波束调制
1
(c) 计算PD时忽略目标区以外噪声的影响
组门限(第二门限)为K=8 滑窗的门限(第三门限)为L=16 (滑窗中包含的组数为16)
求解: 最佳的KOPT 和LOPT，对这题做了具体仿真实现。需要的朋友，一定知道很有用。-Optimal threshold calculated as group slidable window detector is known: hit number N = 128, the group width n = 8, PF = 106, PD = 90 assuming the following conditions: (a) signal is not undulation ( b) ignore the antenna beam modulation 1 (c) the calculation of PD ignored outside the target area noise of impact group door limit (the second door limit) for K = 8 sliding window of the door limit (third door limit) for L = 16 (sliding window contains group 16) to solve: the best of the KOPT the LOPT, these questions do specific simulation to achieve. A friend in need, we must know to be useful. Platform: |
Size: 3072 |
Author:ljr |
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Description: 4FSK调制解调的matlab代码。采用相干解调的方式4FSK进行解调，与大多数方案的包络检波不同。基带信号用四种电平来表示，与调制信号相区分。-Demodulation matlab code 4FSK modulation. Coherent demodulation 4FSK demodulates Unlike most programs envelope detector,. The baseband signal is represented with four level distinguish phase with the modulation signal. Platform: |
Size: 6144 |
Author:胡佳 |
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Search - modulation detector