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Description: This is a model of a QPSK modulation system for transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC fi lters with excess bandwidth α = 0.18 are employed. The receiver includes an NDA timing recovery loop followed by a DD phase recovery loop. -This is a model of a QPSK modulation system f or transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC
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Size: 15360 |
Author: xiaoying |
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Description: qam的matlab程序。m文件，非simulink。各个模块比较全面，希望有所帮助-qam matlab
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Size: 17408 |
Author: Carlin |
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Description: QPSK modulation system with recover loops-This is a model of a QPSK modulation system for transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC fi lters with excess bandwidth α = 0.18 are employed. The receiver includes an NDA timing recovery loop followed by a DD phase recovery loop. The transmitter?s symbol period is T and set to a value of 100 ms. The symbol period at the receiver is Tr. The model will produce six windows: Two constellation plots and two eye diagrams (for the real part only), at the output of the matched fi lters and after the recovery loops a plot of the phase error (output of the NCO) and a plot of the fractional timing error (used in the interpolator). The frequency off set at the receiver is denoted by deltaf. The model simulates the transmission of 8000 QPSK symbols.
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Size: 15360 |
Author: ranbowang |
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Description: caclulating BER with 4 PAM mapping, srrc pulse shaping
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Size: 2048 |
Author: HyehyunLee |
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Description: 对基带数字通信的位同步过程进行了仿真，采用Gardner算法，没有用插值。符号用SRRC进行脉冲成形，环路滤波器没有用PI回路，是简单的alfa，1-alfa低通滤波，NCO调整也比较简单。-Baseband digital communications for the bit synchronization process of the simulation, using Gardner algorithm, did not use interpolation. Carried out with SRRC pulse shaping symbols, did not use PI loop filter circuit is a simple alfa ,1-alfa low-pass filter, NCO is also relatively simple to adjust.
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Size: 1024 |
Author: 鲁信 |
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Description: Computing the frequency response of SRRC filter
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Size: 1024 |
Author: Lee |
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Description: BPSK code in Matlab with Pulse Shaping (SRRC) and Channel Noise (AWGN)
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Size: 1024 |
Author: BBBB |
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Description: Pulse shaping code for Matlab. This module use a square root raised cosine (SRRC) pulse.
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Size: 1024 |
Author: jguiu |
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Description: 用matlab仿真4FSK调制 包括一个SRRC滤波器 一个3级CIC滤波器-realize 4FSK modulation
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Size: 427008 |
Author: 华惟哲 |
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