DSP

IFFT in OFDM
Hi all, I'm trying to perform the OFDM modulation of a DVB-T system. So far, I have the complex valued carriers ck, 1705 altogether (for the 2k mode). To perform the 2048 point IFFT, somehow I have to map this 1705 carriers into 2048 values, xq. My question is, how should I perform this mapping? It seems to me... 26 Sep 2005 00:40

KB-Window
What is the identity (formula) of a Kaiser-Bessel window. I need something like W[n] = F(n,alpha)= .........? ... 19 Sep 2005 18:47

Moving Interrupt Table on Ti 6416DSK with SignalWare AED_109
Hello, My name is Kenneth Lakin. I am working with a SignalWare AED_109 analogue daughtercard attached to a Texas Instruments 6416DSK. I am modifying SignalWare's analogue daughtercard sample program. I am attempting to burn the sample program into the DSK's on-board flash, and have it start executing on power... 15 Sep 2005 23:43

BCH codes
Hi all, I need to implement a BCH encoder in c++. I already have the code generator polinomial, and know k (the information block length) and n( the codeword length). Does anybody know where I can find some info about how to implement it? Or maybe some freely available code which performs this encoding in c++? ... 19 Sep 2005 11:12

Chirp Signal
I am looking for efficient C code to generate linear chirp signal. Can somebody recommend a reference or web site. Regard Tom ... 14 Sep 2005 10:29

predictive filter (phase response)
Hi everyone, Its a very a common question, so if a phase reponse of an digital filter has an positiv phase shift could I say it works as an predictor? Thanksal ... 13 Sep 2005 01:29

Fast Lattice encoding
Dear all, In "Sphere Packings, Lattices and Groups,J.H. Conway and N.J.A. Sloane" the generator matrix for an A2 lattice is a 2x2 matrix, M = [[1 0.5];[0 sqrt(3)/2]]. But in the paper "Fast quantizing and decoding and algorithms for lattice quantizers and codes, Conway, J. and Sloane, N.", the matrix for ... 8 Sep 2005 13:09

FlashAPIInterface.c
What exactly is this file? I tried using the OnChip Flash Programmer for CCS 2.2 with the EzDSP for programming the flash and it throws up this error: "Code Composer could not locate: FlashAPIInterface.c Would you like to browse for it?" I have no clue where to find this file. Any ideas? ... 13 Sep 2005 08:07

Find solution manual for self-learning
Hi...I'm a graduate student. I am studying random process and estimatiom theory by myself now. But the books don't provide any problem solution. I need solutions to check my answers and ideas. Could anyone help me to find the solution manuel. I had mailed the author, but i'm not a instructor or professor. So, t... 8 Sep 2005 11:35

DVB_T transmitter
Hi all, I have to study the behaviour of a DVB-T compliant stream and to perform the simulations I am using CoCentric System Studio (CCSS). Does anybody know if I can find a free DVB-T compliant tranmitter module for this program? I've looking in the internet, but I haven't found anything for the moment. Thank... 6 Sep 2005 09:24