Vehicle-mounted millimeter wave radar RCS test method based on high-precision intelligent mechanical arm
A millimeter-wave radar, intelligent machinery technology, applied in radio wave measurement systems, measuring devices, radio wave reflection/re-radiation and other directions. Millimeter wave radar is not accurate enough for large-angle long-distance measurement
Active Publication Date: 2021-01-05
NANJING CHUHANG TECH CO LTD
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] 1) There is no on-site calibration scale for the measurement of millimeter-wave radar RCS;
[0006] 2) The RCS of the millimeter-wave radar is affected by the environment and deviates greatly from the true value;
[0007] 3) The RCS of the millimeter-wave radar is not accurate enough for large-angle long-distance measurement within the radar measurement range
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0023] see figure 1 and figure 2 , the steps of the present invention are as follows:
[0024] Step 1: Fix the position of the standard angle inverse in the darkroom, read the maximum effective distance R_max of the radar, set the initial position of the radar at the R_max position in the direction of the standard angle inverse, read and record the RCS data measured by the radar;
[0025] Step 2: Always point the radar towards the center of mass of the standard angle, rotate the position of the radar by 1 degree counterclockwise, keep the distance R unchanged and measure the records, and measure in turn every 1 degree until it is placed at a position of 90 degrees around the standard angle;
[0026] Step 3: Every time the radar is placed and ro...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a vehicle-mounted millimeter wave radar RCS test method based on a high-precision intelligent mechanical arm. The method comprises the steps of 1, obtaining the maximum effective distance of a radar, enabling the initial position of the radar to be located at the maximum effective detection distance position in the direction opposite to the front side of a standard corner reflector through the high-precision intelligent mechanical arm, and obtaining and recording the RCS data measured by the radar, 2, controlling the high-precision intelligent mechanical arm to anticlockwise rotate the radar by 1 degree with the standard corner reflector as the reverse circle center, 3, when the radar is placed and rotated to 90 degrees, completing the measurement of the RCS of thestandard corner reflector in a period, re-controlling the high-precision intelligent mechanical arm to place the radar at the position of 0 degree, reducing the distance from the radar to the target standard corner reflector 1m compared with the previous period, and repeating the step 2 until the distance from the radar to the target standard corner reflector is 1m, and 4, repeating the step 3 until the distance to the corner reflector does not exceed 1m. Through stable and accurate control of the high-precision intelligent mechanical arm, RCS coverage measurement of the standard corner reflector of the millimeter wave radar detection range is realized.
Description
technical field [0001] The invention relates to a vehicle-mounted millimeter-wave radar RCS testing method based on a high-precision intelligent mechanical arm, and belongs to the technical field of millimeter-wave radar environment perception. Background technique [0002] The development of unmanned driving technology is increasingly dependent on the accuracy of millimeter-wave radar measurement. Millimeter-wave radar can measure the speed and distance of target reflection points; but for targets with similar motion states, position and speed alone are not enough to distinguish; therefore, the introduction of Millimeter radar RCS information can increase measurement accuracy; in order to have a more accurate understanding of the target RCS, it is first necessary to find a ruler, so it is particularly important to measure the RCS of the standard angle inversion. [0003] With the support of a large amount of measurement data, the RCS measured by the millimeter-wave radar ca...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/931G01S7/41G01S7/40
CPCG01S13/931G01S7/411G01S7/40
Inventor 黄小月楚詠焱张我弓李烜张洁吴军宋玛君赵冬春
Owner NANJING CHUHANG TECH CO LTD