DOS Estimation Algorithm Based On DSP And Its Hardware Implementation

Array signal receiving technology also called space spectrum estimationtechnology. It is mainly used to measure the signal source direction of space. Superresolution technology to direction array is a most popular one among space spectrumestimation technology in recent years. Its main advantage is the improvement of theperformance of the direction and operation to speed up.To the algorithm, according to this topic is in the study of the characteristics of theincoherent signal source, use MUSIC algorithm and ESPRIT algorithm of the spacespectrum estimation technology for further study. Do the simulation result of these twoalgorithms’ real DOA estimate effect, and compared effect in different signal sourceconditions. To the hardware, use a high-speed DSP chip for data processing, acceleratethe algorithm processing speed. Finally plan TMS320C6713to be the core,EPFIOK10TC144-4to be the assistant. Through the computer, simulated data signalswill be sent to DSP. In DSP data will be processed, after that FPGA will do the furtheranalysis, and get final results. Final results will be transported to the next machinethrough the RS-232serial and displayed on the terminal display.After the completion of the building of the system structure, hardwareimplementation is also done. Design and product the printed circuit board, thencommission and test the printed circuit board, found some ordinal PCB productionprocess problem. After repeated testing and modification, successfully solve theseproblems, complete the task, and achieve the goal of the system design.