A radar data compression method based on reference frame misalignment prediction

Abstract

The invention discloses a radar data compression method based on reference frame misalignment prediction. At first, that optimal reference frame with the strong data correlation among the original frames is determined, a prediction frame is constructed by performing intra-frame positional misalignment on the optimal reference frame, the difference data between the current frame and its predicted frame is compressed and decompressed by the block adaptive quantization algorithm to obtain the recovered difference data, and then the position information of the misalignment coding of the referenceframe data is transmitted to the decoding end through Huffman lossless coding, and then the recovered difference data and the predicted frame are added to obtain the reconstructed data. The inventionadopts inter-frame correlation to determine frame data reference frame, interframe misalignment prediction, block adaptive quantization algorithm, Huffman coding, frame data difference and reconstruction technology, under the premise of guaranteeing a certain amount of computation, achieves a higher peak signal-to-noise ratio and data reconstruction degree, has the characteristic of strong interframe prediction correlation, small difference process quantization error, high reconstruction data recovery degree and so on.

Description

technical field [0001] The invention belongs to the technical field of image compression, in particular to a radar data compression method based on reference frame misalignment prediction. Background technique [0002] With the successful launch of the "Chang'e-1" lunar exploration project, it marks that China's space exploration process is developing into deep space exploration. Deep space exploration refers to the exploration of the moon and celestial bodies and space beyond the moon. Its main purpose is to develop and utilize space resources, develop space technology, conduct scientific research, explore the origin of the solar system and the universe, and expand the living space of human beings. To serve the long-term sustainable development of human society. Deep space exploration has important military and political significance, making it one of the three major space activities of human beings in the new century. [0003] The main tools for deep space exploration re...

AI Technical Summary

Problems solved by technology

Using this correlation, the difference between adjacent frame data is made, and the dynamic range of the difference data will be greatly reduced compared with the original data.

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