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1. 发明授权

US4467326A Method and apparatus for preventing the response of a radar beacon to receive radar pulses originating from the side lobes of a transmitter and an arrangement 失效
标题翻译：用于防止雷达信标响应的方法和装置接收源自发射机的旁瓣和布置的雷达脉冲
公开(公告)号：US4467326A
公开(公告)日：1984-08-21
申请号：US284184
申请日：1981-07-17
申请人： Philip M. Charas , Per-Olof G. Gustavsson , Bo A. Morwing
发明人： Philip M. Charas , Per-Olof G. Gustavsson , Bo A. Morwing
IPC分类号： G01S13/75 , G01S13/76 , G01S13/78 , G01S13/79 , G01S9/56
CPC分类号： G01S13/762 , G01S13/78
摘要： A method for preventing a radar beacon's response to received pulses from a vessel which originate from the side lobes of the vessel antenna. The carrier frequency of the radar signal pulses to and received by the beacon is measured and a value of this frequency is stored when the amplitudes of the signal pulses exceed a certain high threshold level (Th). If signals after that are received which exceed a low threshold level (Tl) (but not the high) the carrier frequency of such signals is measured and a corresponding value is stored. Measuring two subsequent and equal carrier frequencies is considered as a criterion that a response signal from the beacon responding to the second received signal should not be transmitted. An arrangement to carry out the method is described.
摘要翻译： PCT No.PCT / SE80 / 00325 Sec。 371日期1981年7月17日 102（e）日期1981年7月17日PCT提交1980年12月8日PCT公布。第WO81 / 01747号公报日期：1981年6月25日。一种用于防止雷达信标对来自容器天线的旁瓣的血管的接收脉冲的响应的方法。当信号脉冲的幅度超过一定的高阈值电平（Th）时，测量到信标的和由信标接收的雷达信号脉冲的载波频率并存储该频率的值。如果接收到超过低阈值电平（T1）（但不高）的信号，则测量这些信号的载波频率并存储对应的值。测量两个后续和相等的载波频率被认为是不应该发送来自响应于第二接收信号的信标的响应信号的标准。描述了执行该方法的布置。

2. 发明授权

US4628319A Navigation system 失效
标题翻译：导航系统
公开(公告)号：US4628319A
公开(公告)日：1986-12-09
申请号：US514827
申请日：1983-06-16
申请人： Bo A. Morwing , Bengt L. Andersson , Per-Olof G. Gustavsson
发明人： Bo A. Morwing , Bengt L. Andersson , Per-Olof G. Gustavsson
IPC分类号： G01S20060101 , G01S13/76 , G01S13/80 , G01S13/74
CPC分类号： G01S13/76
摘要： A navigation system including at least one pulse radar and a number of transponders which when receiving radar pulses transmit high frequency pulse modulated signals. When receiving an interrogating signal from the pulse radar the transponder transmits a response signal with a delay. The delay is selected in such a manner that the response signal arrives at the pulse radar within a time space lying between the moment when all signal echos, lying within a definite range, have been received and the moment when the next radar pulse begins. The display scan in the radar is delayed by the same value as the response signal. In this way the response signal competes with considerably weaker echo signals than in the case of a non delayed response.
摘要翻译： PCT No.PCT / SE82 / 00364 Sec。 371日期：1983年6月16日 102（e）日期1983年6月16日PCT申请日为1982年11月2日PCT公布。出版物WO83 / 01838 日期：1983年5月26日。一种导航系统，包括至少一个脉冲雷达和多个转发器，当接收雷达脉冲时发送高频脉冲调制信号。当从脉冲雷达接收询问信号时，应答器发送具有延迟的响应信号。以这样的方式选择延迟，使得响应信号在位于处于一定范围内的所有信号回波已经被接收到下一个雷达脉冲开始的时刻之间的时间空间内到达脉冲雷达。雷达中的显示扫描延迟与响应信号相同的值。以这种方式，响应信号与非延迟响应的情况相比，具有相当弱的回波信号。

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