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高等通信原理16_QAM symbol sequence of 2000 symbols and plot the constellation
標簽： constellation sequence symbols symbol
上傳時間： 2013-12-30
上傳用戶：wfl_yy
qpsk constellation simulation under rayleigh fading channel
標簽： constellation simulation rayleigh channel
上傳時間： 2013-12-25
上傳用戶：123456wh
Modify the modulation example (COMMDOC_MOD) so that it uses a Gray-coded signal constellation.
標簽： constellation COMMDOC_MOD Gray-coded modulation
上傳時間： 2013-12-29
上傳用戶：l254587896
Modify the modulation example (COMMDOC_MOD) so that it uses a Gray-coded signal constellation.
標簽： constellation COMMDOC_MOD Gray-coded modulation
上傳時間： 2017-01-08
上傳用戶：xieguodong1234
This m file shows constellation for MQAM.
標簽： constellation shows This MQAM
上傳時間： 2014-01-10
上傳用戶：wfl_yy
Plots constellation difference between the ideal and TDSCDMA
標簽： constellation difference between TDSCDMA
上傳時間： 2017-08-01
上傳用戶：xuanjie
simulation of mpsk modulation technick and demonstation of constellation in noisy arean and non-noisy
標簽： constellation demonstation simulation modulation
上傳時間： 2017-09-01
上傳用戶：cainaifa
Method to generate a any constellation used in any communication system. QPSK QAM etc
標簽： constellation communication any generate
上傳時間： 2017-09-13
上傳用戶：z1191176801
adsl 模塊中的另一部分，Serial/Parallel, Parallel/Serial及constellation Mapping部分。
上傳時間： 2015-09-20
上傳用戶：牛布牛
We address the problem of blind carrier frequency-offset (CFO) estimation in quadrature amplitude modulation, phase-shift keying, and pulse amplitude modulation communications systems.We study the performance of a standard CFO estimate, which consists of first raising the received signal to the Mth power, where M is an integer depending on the type and size of the symbol constellation, and then applying the nonlinear least squares (NLLS) estimation approach. At low signal-to noise ratio (SNR), the NLLS method fails to provide an accurate CFO estimate because of the presence of outliers. In this letter, we derive an approximate closed-form expression for the outlier probability. This enables us to predict the mean-square error (MSE) on CFO estimation for all SNR values. For a given SNR, the new results also give insight into the minimum number of samples required in the CFO estimation procedure, in order to ensure that the MSE on estimation is not significantly affected by the outliers.
標簽： frequency-offset estimation quadrature amplitude
上傳時間： 2014-01-22
上傳用戶：牛布牛
