Convolutional

Convolutional Encoder of Code Rate=1/2, with 3 Memory Elements and a corresponding Hard Decision Viterbi Decoder Platforms: Matlab

This project provides matlab class for implementation of convolutional neural networks. This networks was developed by Yann LeCun and have sucessfully used in many practical applications, such as handwritten digits recognition, face detection, robot navigation and others (see references for more... Platforms: Matlab

CVencode.m % function for CV encoding (arbitrary CV code)VAharddecode1.m % function for Viterbi hard decision decodingCVsimhard.m basic CV coding/decodingBERcurve_CV_hard.m computes simulated BER curveUTILITY FUNCTIONSgetcodeparametersbin2decideci2bin Platforms: Matlab

In this project, we seek to minimize the gap-to-capacity (given by Shannond-deOaos theoretical limit) of a rate 1/3 code (also can be modified for 1/N). This is done via a convolutional encoder/decoder for varying memory elements as well for both soft and hard decoding scheme. We show that the... Platforms: Matlab

1> Log MAP decoder for RSC and NSC convolutional codes2> Based on Lalit Bahl's original BCJR algorithm and its logarithmic version (Hanzo & Woodard).3> Test-bench code is also included.4> *** PLEASE SUBMIT A RATING ***. Email me with any Qs Platforms: Matlab

Computes BER v EbNo curve for convolutional encoding / soft decision Viterbi decoding scheme assuming BPSK.Brute force Monte Carlo approach is unsatisfactory (takes too long) to find the BER curve.The computation uses a quasi-analytic (QA) technique that relies on the estimation (approximate one)... Platforms: Matlab

BER/SER CurvesThe files in this demo are designed to generate a number of performance curves for various well-known systems. This is not meant to be a comprehensive list; it's merely a set of reference models that show how some well-established results can be generated using Simulink models. It... Platforms: Matlab

IT++ is a C++ library of mathematical, signal processing and communication routines IT++ is a C++ library of mathematical, signal processing and communication classes and functions. Its main use is in simulation of communication systems and for performing research in the area of... Platforms: Windows, Mac, Linux

This model simulates a CDMA2000 1xRTT Forward link (between Base Station and Mobile Station).In particular, it simulates the Radio Configuration 3 of a Forward Fundamental channel.The block CDMA2k: Initial settings allows you to set different parameters such as data rate, Power ControlSubChannel... Platforms: Matlab

CHAPTER 1: FOURIER ANALYSIS1.1 CONTINUOUS-TIME FOURIER SERIES (CTFS)1.2 PROPERTIES OF CTFS 1.2.1 Time-Shifting Property 1.2.2 Frequency-Shifting Property 1.2.3 Modulation Property1.3 CONTINUOUS-TIME FOURIER TRANSFORM (CTFT)1.4 PROPERTIES OF CTFT 1.4.1 Linearity 1.4.2 Conjugate Symmetry 1.4.3 Real... Platforms: Matlab

Features:- End-to-end 802.11a physical layer - All mandatory and optional data rates: 6, 9, 12, 18, 24, 36, 48, and 54 Mb/s- BPSK, QPSK, 16-QAM, 64-QAM modulations- Forward error correction coding (convolutional; code rates 1/2, 2/3, 3/4)- OFDM transmission: 52 subcarriers, 4 pilots, 64-pt FFTs,... Platforms: Matlab

The first CNN appeared in the work of Fukushima in 1980 and was called Neocognitron. The basic architectural ideas behind the CNN (local receptive fields,shared weights, and spatial or temporal subsampling) allow such networks to achieve some degree of shift and deformation invariance and at the... Platforms: Matlab