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A radar data storage method and device

A radar data and data technology, applied in radio wave measurement systems, instruments, etc., can solve problems such as data mis-storage, and achieve the effect of avoiding data mis-storage and ensuring accuracy and integrity.

Active Publication Date: 2020-07-28
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a radar data storage method and device to solve the problem of data error storage caused by false alarms in existing radars

Method used

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  • A radar data storage method and device
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  • A radar data storage method and device

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0072] This example is used to illustrate the process of acquiring wavegate data according to the preset signal-to-noise ratio threshold and storing it in NVSRAM. Figure 5 is the radar experiment scene time axis of the embodiment of the present invention, Figure 6 It is the data storage time axis triggered by the signal-to-noise ratio threshold of the embodiment of the present invention, such as Figure 5 , Figure 6 As shown, the selected storage module is NVSRAM with a capacity of 128MB, which is divided into two data storage areas. The two data storage areas work independently and are used to record the effective gate data of target a and target b respectively.

[0073] radar at t on Turn on the machine at any time, and the storage device starts to work at this time, write the wave gate data irrelevant to the target detection into the data storage area of ​​the storage unit in sequence, and after the data storage area is full, the address pointer jumps back to the data ...

example 2

[0076] This example is used to illustrate the process of recording wavegate data according to the preset time interval and storing it in the solid-state hard disk. Its working method is to preset the start storage time and end storage time of the storage system, and then judge the The time stamp, that is, whether the stamp is within the preset time interval determined according to the start storage time and the end storage time determines whether the wave gate data is stored.

[0077] Figure 8 It is the data storage time axis triggered by the preset time interval of the embodiment of the present invention, such as Figure 8 As shown, the radar at t on turn on at time, at t off Always shut down. at [t on ,t off ] period, the storage device works continuously. The signal processor will continuously transmit the wave gate data with time stamp to the storage device in units of frames, and the control unit of the board device will extract the time stamp from the data frame a...

example 3

[0079] This example is used to illustrate the process of acquiring Portal data and storing them in the solid-state disk according to receiving the admission start instruction and the admission termination instruction. The time to stop recording wavegate data.

[0080] Figure 10 It is the data storage timeline triggered by the instruction of the embodiment of the present invention, such as Figure 10 As shown, the radar at t on turn on at time; at t ms At any time, the staff sends the start-up command to the storage device through the peripheral equipment, and when the storage device receives the start-up command, the Wavegate data will be written into the mSATA solid-state hard disk; after a period of writing time, at t me time, the storage device receives the recording termination instruction, at this time the hard disk stops data writing and enters the idle state; when the time t mrs , the storage device receives the recording start instruction again, at this time, the ...

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Abstract

The present invention provides a radar data storage method and a device. The method comprises the following steps: if the signal-to-noise ratio of a current echo signal is greater than or equal to a preset signal-to-noise ratio threshold, acquiring the wave gate data of the current echo signal and writing in a memory unit; and if the time scale of the wave gate data of the current echo signal is in a preset time interval, acquiring the wave gate data of the current echo signal and writing in the memory unit, and / or, if an acquisition initial instruction is received, continuously acquiring thewave gate data of the echo signal(s) and writing in the memory unit until that an acquisition termination instruction is received, and thus the radar detection situation can be analyzed. According tothe method and the device, then problem of data false storage due to interference can be avoided, the accuracy and the integrity of the acquisition of the wave gate data are ensured, and thus the method and the device can provide conditions for subsequent effective data analysis.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of radar signal processing, and in particular to a radar data storage method and device. Background technique [0002] Radar (Radar) is a device that discovers targets and determines spatial positions by radio. Radar emits electromagnetic waves to irradiate the target and receive its echo, thereby obtaining information such as the distance from the target to the electromagnetic wave emission point, the distance change rate (radial velocity), azimuth, height and other information. It is not only an indispensable electronic equipment for military affairs, but also It is also widely used in social and economic development (such as weather forecast, resource detection and environmental monitoring, etc.) and scientific research (such as celestial body research, atmospheric physics, ionospheric structure research, etc.). [0003] The signal processor of the radar is used to receive and proce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/40
CPCG01S7/40
Inventor 王旭魏国华刘灿孔明黄曦
Owner BEIJING INSTITUTE OF TECHNOLOGYGY