njg1130 GPS LOW NOISE AMPLIFIER GaAs MMIC
上传时间： 2013-12-13
上传用户：huangld
MSP430 A Low-Cost Single-Phase Electricity Meter Using MSP430C11x
标签： Single-Phase Electricity MSP 430
上传时间： 2014-01-25
上传用户：洛木卓
Results of the Adaptive Multi-Rate (AMR) noise suppression selection phase
标签： suppression Multi-Rate selection Adaptive
上传时间： 2017-02-24
上传用户：王者A
Fundamentals of RF Circuit Design with Low Noise Oscillators Ebook
标签： Fundamentals Oscillators Circuit Design
上传时间： 2017-07-17
上传用户：trepb001
This m file analyzes a coherent binary phase shift keyed(BPSK) and a amplitude shift keyed(ASK) communication system. The receiver uses a correlator(mixer-integrator[LPF]) configuration with BER measurements comparing measured and theoretical results. The bandpass and low pass used in the receiver are constructed using z transforms.
标签： keyed shift amplitude analyzes
上传时间： 2015-09-26
上传用户：liuchee
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
Image enhancement in frequency domain using Fourier center frequency, Gaussian lowpass filter, Low pass filter, high pass filter. Image restoration using medean filter, weiner filter with noise generator such as Gaussian noise, Salt and Pepper noise
标签： frequency enhancement Gaussian Fourier
上传时间： 2017-08-24
上传用户：xinzhch
·Phase-Locked Loop Circuit Design
标签： nbsp Phase-Locked Circuit Design
上传时间： 2013-04-24
上传用户：lhc9102
资料->【E】光盘论文->【E5】英文书籍->Phase-Locked Loops for Wireless Communications (英).pdf
标签： Communications Phase-Locked Wireless Loops
上传时间： 2013-07-27
上传用户：大融融rr
Abstract: Transimpedance amplifiers (TIAs) are widely used to translate the current output of sensors like photodiode-to-voltagesignals, since several circuits and instruments can only accept voltage input. An operational amplifier with a feedback resistor fromoutput to the inverting input is the most straightforward implementation of such a TIA. However, even this simple TIA circuit requirescareful trade-offs among noise gain, offset voltage, bandwidth, and stability. Clearly stability in a TIA is essential for good, reliableperformance. This application note explains the empirical calculations for assessing stability and then shows how to fine-tune theselection of the feedback phase-compensation capacitor.
标签： Transimpedance Stabilize Amplifier Your
上传时间： 2013-11-13
上传用户：daoyue
