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1. 发明申请

WO1980001782A1 ANTI-COLLISION VEHICULAR RADAR SYSTEM 审中-公开
标题翻译：防撞车辆雷达系统
公开(公告)号：WO1980001782A1
公开(公告)日：1980-09-04
申请号：PCT/US1980000186
申请日：1980-02-26
申请人： COLLISION AVOIDANCE SYSTEMS
发明人： COLLISION AVOIDANCE SYSTEMS , SIMS J , FLANNERY J
IPC分类号： B60T07/12
CPC分类号： G01S13/422 , B60K31/0008 , B60Q9/008 , G01S7/023 , G01S7/025 , G01S13/931 , G01S2013/9325 , G01S2013/9346 , G01S2013/9353 , G01S2013/9367
摘要： Anti-collision vehicular radar system which provides a warning of a potential collision of the vehicle with other vehicles or objects in the path of the vehicle and automatic braking. The invention utilizes a pulsed radar system (24) with overlapped antenna beams (13, 14, A, B) for off-axis object discrimination. The invention determines the pattern of change in relative velocity of the vehicle and the object which is detected by its radar to provide signals which are processed by circuitry to determine whether the detected object is a potential obstruction which must be avoided by braking or maneuvering of the vehicle. Each time the vehicle travels a predetermined, incremental distance, the radar (26) is pulsed (16). Circuitry (19) is provided which detects reflections from objects in 32 range gate intervals 10 feet in length, for example, extending in front of the vehicle. The received signal for each 10 foot range gate is a binary bit representing the presence of one or more objects within that range gate. The number of radar pulses emitted during the time a detected object remains in a single range gate interval represent the relative speed between the object and vehicle; and the relative speed of an object is stored for each range gate interval through which it passes. Variations in relative speed are compared with pre-stored values (27) which relate to apparent velocity of the vehicle with respect to a non-moving object as a function of the distance to the target and the displacement of the object from the line of travel of the vehicle. An object dead ahead will show no variation in observed relative speed and may represent a potential collision hazard, while an object not directly in the path of the vehicle will show a characteristic variation in observed speed as it passes through the range gate intervals.
摘要翻译：防碰撞车辆雷达系统，其提供车辆与车辆路径中的其他车辆或物体的潜在碰撞的警告以及自动制动。本发明利用具有重叠天线波束（13,14，A，B）的脉冲雷达系统（24），用于离轴对象辨别。本发明确定了由其雷达检测到的车辆和物体的相对速度的变化模式，以提供由电路处理的信号，以确定检测到的物体是否是必须通过制动或机动的方式避免的潜在障碍物车辆。每当车辆行进预定的增量距离时，雷达（26）被脉冲（16）。提供电路（19），其检测来自长度为10英尺的32个范围门间隔中的物体的反射，例如在车辆前方延伸。每个10英尺范围门的接收信号是表示该范围门内的一个或多个物体的存在的二进制位。在检测到的对象保持在单个范围门间隔期间发射的雷达脉冲的数量表示物体和车辆之间的相对速度; 并且对于其通过的每个范围门间隔存储对象的相对速度。将相对速度的变化与预先存储的值（27）进行比较，其与车辆相对于非移动物体的视速相关，作为与目标的距离的函数以及物体距离行程的位移的函数的车辆。前方的物体将不会显示观察到的相对速度的变化，并且可能表示潜在的碰撞危险，而不直接在车辆路径中的物体将在观察速度通过范围门间隔时显示特征变化。

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