Peak Signal to Noise Ratio
上传时间： 2015-10-07
上传用户：tb_6877751
Given signal-to-noise ratio and bit error rate performance curve is a good beginner s reference program.
标签： signal-to-noise performance reference beginner
上传时间： 2014-01-11
上传用户：zhaiyanzhong
calculates the signal to noise ratio in each subchannel in DMT.
标签： calculates subchannel signal noise
上传时间： 2015-10-30
上传用户：13188549192
computes the shortening-signal-to-noise ratio in dB,tail energy in dB and the effective channel impulse response
标签： shortening-signal-to-noise the effective computes
上传时间： 2015-10-30
上传用户：libinxny
With the interference-to-noise ratio reduced to 30 dB, plot the adaptive antenna pattern after 200 iterations of the LMS algorithm
标签： interference-to-noise the adaptive antenna
上传时间： 2014-01-27
上传用户：zyt
The exercise should be finished in English. 2. According to Prof. Zhang s requirement, this exercise mainly focuses on the BER performance of some wireless communication system using specific coding and modulation type through the AWGN channel. signal-to-noise ration (SNR) varies from 5dB to 20dB.
标签： requirement According exercise finished
上传时间： 2014-01-06
上传用户：zhangyigenius
The software is capable to simulate space time code [1] for QPSK modulation using different number of state. Examples of generator matrix up to 256 stetes are provided. Variable signal to noise ratio (SNR) might be applied to produce bit error rate (BER) or frame error rate (FER) curves.
标签： modulation different software simulate
上传时间： 2014-01-22
上传用户：qq1604324866
Designers of signal receiver systems often need to performcascaded chain analysis of system performancefrom the antenna all the way to the ADC. Noise is a criticalparameter in the chain analysis because it limits theoverall sensitivity of the receiver. An application’s noiserequirement has a signifi cant infl uence on the systemtopology, since the choice of topology strives to optimizethe overall signal-to-noise ratio, dynamic range andseveral other parameters. One problem in noise calculationsis translating between the various units used by thecomponents in the chain: namely the RF, IF/baseband,and digital (ADC) sections of the circuit.
上传时间： 2014-12-05
上传用户：cylnpy
This program includes: [5 7] convolutional code (encoder) + BPSK + AWGN + MAP (decoder). It evaluates Bit Error Rate and plots it versus SNR(signal to Noise Ratio).
标签： convolutional includes program encoder
上传时间： 2015-12-24
上传用户：bruce5996
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.
标签： frequency-offset estimation quadrature amplitude
上传时间： 2014-01-22
上传用户：牛布牛
