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2. 发明授权

US4023165A Signal modification techniques 失效
标题翻译：信号修改技术
公开(公告)号：US4023165A
公开(公告)日：1977-05-10
申请号：US583186
申请日：1975-06-02
申请人： Robert Alan Holt , Kenneth Charles Adam
发明人： Robert Alan Holt , Kenneth Charles Adam
IPC分类号： G01S7/10 , G01S13/95 , G09G5/42 , G01S9/60 , G06F3/14
CPC分类号： G01S13/953 , G01S7/10 , G09G5/42
摘要： Signals producing each spot in a digital two-dimensional spot matrix display, such as in a digital weather radar, are compared on a spot-by-spot basis with signals for immediately proceeding and following spots in each dimension. When the preceding and following spots have the same value, the spot being compared is caused to have that same value when displayed. The comparing circuitry may be provided signals from a radar antenna which receives, serially, signals at succeeding range points at a given azimuth and then at the same range points at succeeding azimuths. Signals at each given range at a plurality of succeeding azimuths may be averaged to produce an improved visual display. The compared signals may be further smoothed by averaging signals for succeeding azimuths and displaying the averaged signals alternating with the unaveraged signals.
摘要翻译：在数字二维点阵显示中产生每个点的信号，例如在数字气象雷达中，逐点地与每个维度中立即进行的信号和跟随点进行比较。当前面和后面的点具有相同的值时，当被显示时，使被比较的斑点具有相同的值。比较电路可以是来自雷达天线的信号，该雷达天线在给定的方位角，然后在相继的方位点的相同的范围内，在后续的距离点处串行地接收信号。在多个后续方位角处的每个给定范围处的信号可以被平均以产生改进的视觉显示。可以通过平均用于后续方位角的信号并且显示与未平铺信号交替的平均信号来进一步平滑比较的信号。

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