SEARCHING FOR THE BEST QUADRIPHASE CODES USING THE TMS320C50 DSK

This application report presents a study concerning the search for the best quadriphase complex sequences to use in digital pulse compression (DPC) radar sub-systems.

Presently, only an exhaustive search is able to insure the discovery of best codes. This type of research requires a system with high computational power to scan a very important number of sequences.

The Texas Instruments (TITM) TMS320C50 Digital Signal Processor (DSP) Starter Kit (DSK) is used for this purpose. The programs for this study were coded in ANSI C and translated into Assembly language by using TI software.

A link between the DSK and a standard PC, loaded with Microsoft Windows/DOS, is used to save the results in files on the hard disk.

The speed improvement achieved by using the TI TMS320C50 DSK was more than a factor of 10 better as compared to a search using compiled PASCAL or C programs.

This document was an entry in the 1995 DSP Solutions Challenge, an annual contest organized by TI to encourage students from around the world to find innovative ways to use DSPs. For more information on the TI DSP Solutions Challenge, see TI's World Wide Web site at www.ti.com.

*DISCLAIMER: This document was part of the DSP Solution Challenge 1995 European Team Papers. It may have been written by someone whose native language is not English. TI assumes no liability for the quality of writing and/or the accuracy of the information contained herein.

Go to the Engineering Design Center to locate information on other TI Semiconductor devices.

(c) Copyright 1998 Texas Instruments Incorporated. All rights reserved.
Trademarks, Important Notice!