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1. WO2022000332 - RADAR DETECTION METHOD AND RELATED DEVICE

Publication Number WO/2022/000332
Publication Date 06.01.2022
International Application No. PCT/CN2020/099557
International Filing Date 30.06.2020
IPC
G01S 17/42 2006.1
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02Systems using the reflection of electromagnetic waves other than radio waves
06Systems determining position data of a target
42Simultaneous measurement of distance and other coordinates
G01S 13/34 2006.1
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
13Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
06Systems determining position data of a target
08Systems for measuring distance only
32using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
34using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
G01S 7/41 2006.1
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
02of systems according to group G01S13/58
41using analysis of echo signal for target characterisation; Target signature; Target cross-section
Applicants
  • 华为技术有限公司 HUAWEI TECHNOLOGIES CO., LTD. [CN]/[CN]
Inventors
  • 李孟麟 LI, Menglin
  • 李强 LI, Qiang
  • 姜彤 JIANG, Tong
Agents
  • 广州三环专利商标代理有限公司 SCIHEAD IP LAW FIRM
Priority Data
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) RADAR DETECTION METHOD AND RELATED DEVICE
(FR) PROCÉDÉ DE DÉTECTION RADAR ET DISPOSITIF ASSOCIÉ
(ZH) 一种雷达探测方法及相关装置
Abstract
(EN) A radar detection method and a related device. The method comprises: intercepting multiple measurement units (MUs) from a beat signal of a radar according to a time domain sliding step (S1101), wherein the time domain length of each MU of the multiple MUs is greater than the time domain length of a preset sliding step; determining frequency information of each MU (S1102); and obtaining a radar point cloud detection result according to the frequency information of each MU (S1103), wherein the detection result comprises at least one of the speed of a target object or the distance of the target object. According to the method, in the case of no significant cost increase, the radar point-out rate (i.e., the point cloud density) can be increased and the signal-to-noise ratio is not lost.
(FR) La présente invention concerne un procédé de détection radar et un dispositif associé. Le procédé consiste à : intercepter de multiples unités de mesure (MU) à partir d'un signal de battement d'un radar selon une étape de glissement dans le domaine temporel (S1101), la longueur de domaine temporel de chaque MU des multiples MU étant supérieure à la longueur de domaine temporel d'une étape de glissement prédéfinie ; déterminer des informations de fréquence de chaque MU (S1102) ; et obtenir un résultat de détection de nuage de points de radar en fonction des informations de fréquence de chaque MU (S1103), le résultat de détection comprenant la vitesse d'un objet cible et/ou la distance avec l'objet cible. Selon le procédé, dans le cas où il n'existe pas d'augmentation de coût significative, le taux de sortie de radar (c'est-à-dire la densité de nuage de points) peut être augmenté et le rapport signal sur bruit n'est pas perdu.
(ZH) 一种雷达探测方法及相关装置,该方法包括:按照时域滑动步长从雷达的拍频信号中截取多个测量单元MU(S1101),其中,多个测量单元MU中的每个MU的时域长度均大于预设滑动步进的时域长度;确定每个MU的频率信息(S1102),根据每个MU的频率信息分别得到一个雷达点云探测结果(S1103),其中探测结果包括目标物的速度或目标物的距离中的至少一项。该方法能够在不明显提高成本的情况下,提高雷达出点率(即点云密度)且不丢失信噪比。
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