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.
資源簡介：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, ...
上傳時間： 2014-01-22
上傳用戶：牛布牛
資源簡介：We address the problem of predicting a word from previous words in a sample of text. In particular, we discuss n-gram models based on classes of words. We also discuss several statistical algorithms for assigning words to classes based on...
上傳時間： 2016-12-26
上傳用戶：xfbs821
資源簡介：In this paper, we consider the problem of filtering in relational hidden Markov models. We present a compact representation for such models and an associated logical particle filtering algorithm. Each particle contains a logical formula ...
上傳時間： 2016-01-02
上傳用戶：海陸空653
資源簡介：The implementation of estimation and correction of carrier frequency offset of COFDM system in DAB receiver IC ASIC03
上傳時間： 2013-12-24
上傳用戶：變形金剛
資源簡介：This paper studies the problem of categorical data clustering, especially for transactional data characterized by high dimensionality and large volume. Starting from a heuristic method of increasing the height-to-width ratio of the clust...
上傳時間： 2015-10-24
上傳用戶：evil
資源簡介：The present paper deals with the problem of calculating mean delays in polling systems with either exhaustive or gated service. We develop a mean value analysis (MVA) to compute these delay figures. The merits of MVA are in its intrinsic ...
上傳時間： 2014-11-17
上傳用戶：kelimu
資源簡介：The problem of image registration subsumes a number of problems and techniques in multiframe image analysis, including the computation of optic flow (general pixel-based motion), stereo correspondence, structure from motion, and feature t...
上傳時間： 2016-01-20
上傳用戶：520
資源簡介：In this paper, we describe the development of a rapidly reconfigurable system in which the users’ tacit knowledge and requirements are elicited via a process of Interactive Evolution, finding the image processing parameters to achieve the...
上傳時間： 2014-01-05
上傳用戶：hopy
資源簡介：problem of blind demodulation of multiuser information symbols in a high-rate code-division multiple-access (CDMA) network in the presence of both multiple-access interference (MAI) and intersymbol interference (ISI) is considered.
上傳時間： 2014-01-13
上傳用戶：熊少鋒
資源簡介：For the incomplete methods, we kept the representation of the queens by a table and the method of calculation to determine if two queens are in conflict, which is much faster for this kind of problems than the representation by a matrix. h...
上傳時間： 2015-05-05
上傳用戶：1159797854
資源簡介：關(guān)于FPGA流水線設(shè)計(jì)的論文 This work investigates the use of very deep pipelines for implementing circuits in FPGAs, where each pipeline stage is limited to a single FPGA logic element (LE). The architecture and VHDL design of a parameter...
上傳時間： 2015-07-26
上傳用戶：CHINA526
資源簡介：This paper deals with the problem of speech enhancement when a corrupted speech signal with an additive colored noise is the only information available for processing. Kalman filtering is known as an effective speech enhancement techniqu...
上傳時間： 2015-09-07
上傳用戶：zhangyi99104144
資源簡介：This paper deals with the problem of speech enhancement when only a corrupted speech signal is available for processing. Kalman filtering is known as an effective speech enhancement technique, in which speech signal is usually modeled as...
上傳時間： 2013-12-20
上傳用戶：569342831
資源簡介：In this paper, we describe the development of a mobile butterfly-watching learning (BWL) system to realize outdoor independent learning for mobile learners. The mobile butterfly-watching learning system was designed in a wireless mobile a...
上傳時間： 2014-11-26
上傳用戶：waizhang
資源簡介：using greedy trategy to solve the problem of multiOptimalServe.this code runs in vc 6.0.
上傳時間： 2013-12-05
上傳用戶：腳趾頭
資源簡介：using greedy tratage to solve the problem of Number Delete.
上傳時間： 2014-01-03
上傳用戶：dongqiangqiang
資源簡介：The problem of ¯ nding a linear discriminant function will be formulated as a problem of minimizing a criterion function
上傳時間： 2014-11-30
上傳用戶：15071087253
資源簡介：This paper studies the problem of tracking a ballistic object in the reentry phase by processing radar measurements. A suitable (highly nonlinear) model of target motion is developed and the theoretical Cramer—Rao lower bounds (CRLB) of...
上傳時間： 2014-10-31
上傳用戶：yyyyyyyyyy
資源簡介：This paper studies the problem of tracking a ballistic object in the reentry phase by processing radar measurements. A suitable (highly nonlinear) model of target motion is developed and the theoretical Cramer—Rao lower bounds (CRLB) of...
上傳時間： 2014-01-14
上傳用戶：奇奇奔奔
資源簡介：This paper studies the problem of tracking a ballistic object in the reentry phase by processing radar measurements. A suitable (highly nonlinear) model of target motion is developed and the theoretical Cramer—Rao lower bounds (CRLB) of...
上傳時間： 2013-12-22
上傳用戶：asddsd
資源簡介：In this program we calculate the sum of the incident and scattered fields in a 90 degree conducting wedge by using the analytic and Image theotem method
上傳時間： 2014-10-27
上傳用戶：lizhen9880
資源簡介：it deals the problem of software management and provide solution to it
上傳時間： 2017-04-11
上傳用戶：愛死愛死
資源簡介：This thesis presents a comprehensive overview of the problem of facial recognition. A survey of available facial detection algorithms as well as implementation and tests of di鏗€erent feature extraction and dimensionality reduction methods...
上傳時間： 2017-05-05
上傳用戶：royzhangsz
資源簡介：FERRET - a broadcast analysis tool This tool is designed to demonstrate the problem of "data seapage". The average machine broadcasts a lot of information about itself on open networks. This tool captures and organizes this information...
上傳時間： 2013-11-30
上傳用戶：1101055045
資源簡介：Computes the permanent of a nonnegative integer matrix. Notes: Compile in C++, "g++ -o permanent permanent.c".
上傳時間： 2013-12-23
上傳用戶：zhangyi99104144
資源簡介：the geometry of a diffraction grating, a common illustration in textbooks of optics, spectroscopy, and analytical chemistry. Sliders on the figures allow real-time interactive control of the incidence angle, grating ruling density (lines...
上傳時間： 2016-06-04
上傳用戶：極客
資源簡介：A New OFDM Synchronization Symbol for Carrier Frequency Offset estimation.一個新的OFDM載波符號同步論文。
上傳時間： 2016-06-23
上傳用戶：as275944189
資源簡介：ML estimation of time and frequency offset in OFDM systems
上傳時間： 2017-03-29
上傳用戶：yuzsu
資源簡介：ML estimation of time and frequency offset in OFDM systems
上傳時間： 2013-12-01
上傳用戶：songyue1991
資源簡介：A sample C program to demonstrate the usage of readdir() function to read directory listing in Linux.
上傳時間： 2014-01-25
上傳用戶：ruixue198909
