Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Problem with OFDM equalization

Status
Not open for further replies.

Ahmed Alaa

Full Member level 5
Joined
Jul 22, 2009
Messages
317
Helped
61
Reputation
136
Reaction score
44
Trophy points
1,318
Location
Egypt
Activity points
2,963
Hi all,

I'm performing OFDM equalizer for a pilot assisted system. The system parameters are:

Signal BW = 6 MHz
Carrier = 700 MHz
chip rate = 5.55 MHz
Doppler shift corresponds to max 200 km/s receiver speed

Fading channel is a Rayleigh fading channel, the problem is that when I apply the channel to signal, the channel has a very rapidly varying Channel frequency response that the pilots cannot cope with all variations, I call the Rayleigh function as follows:

chan = rayleighchanrayleighchan(1/5550000, Doppler_shift, Path_delays, Path_gains);

I use the fft functions without indicating the sampling frequency.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top