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Dynamic ping-pong stack type data rearrangement implementation method based on DDR3 (Double Data Rate 3)

A technology of ping-pong stack and data rearrangement, which is applied in the direction of electrical digital data processing, static memory, digital memory information, etc., can solve the problem that the instantaneous large amount of data cannot be processed, and achieve strong real-time system response, large dynamic range, and dynamic The effect of balance and flexibility

Pending Publication Date: 2022-03-01
CNGC INST NO 206 OF CHINA ARMS IND GRP
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Problems solved by technology

[0005] In order to avoid the deficiencies of the prior art, the present invention proposes a data rearrangement method of a ping-pong stack architecture, utilizes two slices of DDR3 memories to perform ping-pong operations, manages the single-chip memory through a dynamic stack, and adopts a data flow-driven manner to realize The loose coupling of data and time series balances the large instantaneous dynamics at the same time, and solves the problem that the instantaneous large amount of data cannot be processed. It has strong versatility, strong dynamic resource scheduling capabilities, and flexible instantaneous large dynamic balance. It can be widely used in radar signals. Processor Product Area

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  • Dynamic ping-pong stack type data rearrangement implementation method based on DDR3 (Double Data Rate 3)
  • Dynamic ping-pong stack type data rearrangement implementation method based on DDR3 (Double Data Rate 3)
  • Dynamic ping-pong stack type data rearrangement implementation method based on DDR3 (Double Data Rate 3)

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0029] The present invention is realized by utilizing the FPGA platform to read and write two clusters of DDR3 memories plugged in. The number of pulse repetitions in a coherent processing interval (CPI) is configured as N, the number of beams in a single pulse repetition period (PRT) is L, and the number of distance units in a single pulse repetition period is M.

[0030] The principle of data rearrangemen...

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Abstract

The invention relates to a dynamic ping-pong stack type data rearrangement implementation method based on DDR3, and belongs to the field of digital signal processing in radar signal processing. Aiming at a scene that near-field wave standing instantaneous dynamic processing capability is high due to far and near wave standing switching, the method realizes loose coupling of data and a time sequence by performing dynamic stack management on a single DDR3 memory, performing ping-pong control on two DDR3 memories and adopting a data stream driving mode, so that instantaneous large dynamic is balanced; the method solves the problem that instantaneous large data volume cannot be processed, is particularly suitable for radar signal processing systems with strong real-time resource scheduling and large dynamic data processing, and has the characteristics of strong dynamic resource scheduling capability, instantaneous large dynamic balance flexibility and the like.

Description

technical field [0001] The invention belongs to the field of digital signal processing in radar signal processing, and relates to moving target detection processing (MTD) of radar signal processing. The data after pulse compression is arranged in the order of the distance dimension, while the MTD processing is to perform Doppler filtering on the data in different pulses of the same distance unit and the same beam in sequence, that is, to process in the order of the Doppler dimension, involving The process of transposing a two-dimensional data matrix, that is, data rearrangement. Background technique [0002] Moving target detection (MTD) is a technology that uses coherent accumulation to improve the signal-to-noise ratio, thereby improving the ability of radar to detect moving targets in the background of clutter. This technology is widely used in radar signal processing systems. MTD is a coherent process that requires buffering a large number of pulse-echo signals. FPGA h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C7/10G06F13/40G06F12/06
CPCG11C7/1012G06F13/4013G06F13/4031G06F12/0646Y02D10/00
Inventor 王辉辉姜洋宋思盛袁子乔赵博
Owner CNGC INST NO 206 OF CHINA ARMS IND GRP
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