منابع مشابه
Blind Detection of Psk Signals
In this paper, a blind detection method is proposed to evaluate the information that can be drawn from the received phase shift keying (PSK) signals without channel knowledge at the receiver. First, we develop a method to determine the decision regions for detecting PSK symbols based on the maximum a posterior (MAP) criterion. Then, to reduce the numerical complexity, an approximated MAP criter...
متن کاملQuality Estimation of Psk Modulated Signals
A very important problem in fade countermeasure systems is the need to detect signal quality quickly and accurately. In fact, the countermeasure has to be initiated before the signal degradation effect on the bit error rate is detected by the user. This paper presents an overview of different methods to evaluate signal quality, which are based on the availability of soft quantized levels of PSK...
متن کاملAn automatic blind modulation recognition algorithm for m-psk signals based on mse criterion
This paper addresses Automatic Blind Modulation Recognition (ABMR)problem, utilizing a Mean Square Error (MSE) decision rule to recognize and differentiate M-ary PSK modulated signals in presence of noise and fading. The performance of the modulation recognition scheme has been evaluated by simulating different types of PSK signals. By putting appropriate Mean Square Error Difference Threshold ...
متن کامل1 Successive Blind Detection of DS / CDMA Signals
This paper provides an investigation into the performance of a multi-stages constant-modulus filter/ signal canceller (CMA/SC) for blind detection of direct sequence/code code division multiple-access (DS/CDMA) signals over additive white Gaussian noise (AWGN) channels. A simple stochastic gradient algorithm for implementing the scheme is presented and the convergence properties of the algorith...
متن کاملSubspace Blind Detection of Asynchronous Cdma Signals in Multipath Channels*
This paper presents a blind adaptive detector for asynchronous DS-CDMA in multipath channels. The receiver exploits the underlying subspace structure for recursive estimation of the desired signal vector, and eliminates the need of explicit channel or delay estimation. The detector is constrained to the signal subspace (hence reduced rank), leading to computational efficiency while also benefit...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the ISCIE International Symposium on Stochastic Systems Theory and its Applications
سال: 2011
ISSN: 2188-4730,2188-4749
DOI: 10.5687/sss.2011.65