| Compared with normal radar echo data, the data stored in standard has a lot of advantages, such as the excellent universal property and great convenience in usage. This paper firstly studies the digital orthogonal detection technology, including low-pass filtering method, Hilbert filtering method, Bessel interpolation method, and polyphrase filtering method, then a brief introduction of the file system is given.On the basis of digital orthogonal detection technology, data standard storage is accomplished with the experience of engineering practice. The use of application interface designed by Visual C++ can avoid the low efficiency of huge data processing using MATLAB. Radar data file is read by C++ input file stream. Orthogonal detection is implemented based on low filtering method witch reduces data analyzing time and simplifies data process procedure. The data is converted to standard format and then written into data file. Finally, the data is verified by MATLAB re-reading and checking with the original data and orthogonal detection results provided. |