| Several realization technologies of phased-array radar coherent video-frequency signal process simulation are studied in this paper. For phased-array radar is a bulky and complicated electronic system, its work principle and form must be clearly analyzed and then decomposed or fused. Then, phased-array radar system can be translated into homologous mathematical models and then the mathematical models are translated into simulation models which are suitable for computer. Lastly, the simulation models are tested and verified.Several critical technologic problems of coherent video frequency simulation system of phased-array radar are discussed in this paper. Firstly, transmission and processing procedure of signal in the phased-array radar system are analyzed and the simulation systemic modular structure of phased-array radar is founded. Secondly, the signal denotation in the coherent video simulation system is discussed and the problem of selecting the system sampling rate is also studied. Thirdly, the problem of how to realize signal coherency in the system simulation and how to generate broadband jamming signal of coherent radar are studied. Fourth, noise characteristic of phased-array radar is analyzed and non-Gaussian correlation noise data is generated with the method of zero- memory non-linear transformation(ZMNL) and spherical invariant random processing (SERF).Lastly, association algorithm and tracking filtering algorithm in the data processing of phased array radar are studied. The method of selecting tracking gate and the partnership rule are presented and the problem of observation error with the rectangular coordinate system and the spherical coordinate system is analyzed. According to the problem of resource efficient utilization of phased array radar, a tracking technology of target adaptation adapting data rate based on the innovation norm is presented and the validity is validated with the computer simulation test.
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