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1. 发明公开

EP2159597A8 Pulsed radar with improved short distance range resolution 审中-公开
标题翻译：脉冲雷达具有改进的短距离分辨率
公开(公告)号：EP2159597A8
公开(公告)日：2010-09-15
申请号：EP09275068.6
申请日：2009-09-01
申请人： Preco Electronics, Inc.
发明人： Hayden, Douglas Todd , Cole, Jonathan , Brandhauer, Brian
IPC分类号： G01S7/292 , G01S7/34 , G01S13/10 , G01S13/36 , G01S7/02
CPC分类号： G01S7/2923 , G01S7/038 , G01S7/34 , G01S13/103 , G01S13/36 , G01S13/50
摘要： Pulsed radar detects the presence and range of very short-range objects via small perturbations in phase and/or amplitude of relatively long duration coherently related transmit pulses. In one embodiment, echoes forming a received signal waveform from a sampling baseband radar receiver are processed at audio frequency to look for perturbations of the phase of the time-stretched received radar signal while the radar is still transmitting a long-duration pulse. In a second embodiment, the time-stretched received signal is processed to look for perturbations in the amplitude of the received radar signal. Small amplitude perturbations due to constructive and destructive interference of the transmitted and reflected signals occur in the receiver when objects are very close to the radar if the receiver is not heavily saturated. These same techniques can also be used to achieve highly accurate ranging of long-distance objects and detection of overlapping echoes from multiple objects.

2. 发明公开

EP2159597A3 Pulsed radar with improved short distance range resolution 审中-公开
标题翻译：脉冲雷达具有改进的短距离分辨率
公开(公告)号：EP2159597A3
公开(公告)日：2014-03-05
申请号：EP09275068.6
申请日：2009-09-01
申请人： Preco Electronics, Inc.
发明人： Hayden, Douglas Todd , Cole, Jonathan , Brandhauer, Brian
IPC分类号： G01S7/292 , G01S7/34 , G01S13/10 , G01S13/36 , G01S7/03 , G01S7/02
CPC分类号： G01S7/2923 , G01S7/038 , G01S7/34 , G01S13/103 , G01S13/36 , G01S13/50
摘要： Pulsed radar detects the presence and range of very short-range objects via small perturbations in phase and/or amplitude of relatively long duration coherently related transmit pulses. In one embodiment, echoes forming a received signal waveform from a sampling baseband radar receiver are processed at audio frequency to look for perturbations of the phase of the time-stretched received radar signal while the radar is still transmitting a long-duration pulse. In a second embodiment, the time-stretched received signal is processed to look for perturbations in the amplitude of the received radar signal. Small amplitude perturbations due to constructive and destructive interference of the transmitted and reflected signals occur in the receiver when objects are very close to the radar if the receiver is not heavily saturated. These same techniques can also be used to achieve highly accurate ranging of long-distance objects and detection of overlapping echoes from multiple objects.

3. 发明公开

EP2159597A2 Pulsed radar with improved short distance range resolution 审中-公开
标题翻译： Gepulstes Radar mit verbesserterNahbereichsauflösung
公开(公告)号：EP2159597A2
公开(公告)日：2010-03-03
申请号：EP09275068.6
申请日：2009-09-01
申请人： Preco Electronics, Inc. , Fadgen, John , Hayden, Douglas Todd , Cole, Jonathan , Bandhauer, Brian
发明人： Fadgen, John , Hayden, Douglas Todd , Cole, Jonathan , Bandhauer, Brian
IPC分类号： G01S7/292 , G01S7/34 , G01S13/10 , G01S13/36 , G01S7/02
CPC分类号： G01S7/2923 , G01S7/038 , G01S7/34 , G01S13/103 , G01S13/36 , G01S13/50
摘要： Pulsed radar detects the presence and range of very short-range objects via small perturbations in phase and/or amplitude of relatively long duration coherently related transmit pulses. In one embodiment, echoes forming a received signal waveform from a sampling baseband radar receiver are processed at audio frequency to look for perturbations of the phase of the time-stretched received radar signal while the radar is still transmitting a long-duration pulse. In a second embodiment, the time-stretched received signal is processed to look for perturbations in the amplitude of the received radar signal. Small amplitude perturbations due to constructive and destructive interference of the transmitted and reflected signals occur in the receiver when objects are very close to the radar if the receiver is not heavily saturated. These same techniques can also be used to achieve highly accurate ranging of long-distance objects and detection of overlapping echoes from multiple objects.
摘要翻译：脉冲雷达通过相对较长持续相干发射脉冲的相位和/或振幅的小扰动来检测非常短距离物体的存在和范围。在一个实施例中，形成来自采样基带雷达接收机的接收信号波形的回波在音频处被处理，以在雷达仍然发送长持续时间脉冲的同时寻找延时接收的雷达信号的相位的扰动。在第二实施例中，对时间延长的接收信号进行处理以寻找所接收的雷达信号的振幅的扰动。如果接收机没有严重饱和，当物体非常接近雷达时，由于发射和反射信号的建构性和相消干扰而导致的小振幅扰动发生在接收机中。这些相同的技术也可用于实现高精度测距的远距离物体和检测来自多个物体的重叠回波。

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