发明名称 別の無人機から放出されるスプリアスエコーの識別を有する無人機用の超音波テレメトリー法
摘要 <p>The method comprises: a) the emission of an ultrasound burst repeated at a predetermined recurrence frequency; and b) after each emission and for the duration of a time frame (n-1, n, n+1, . . . ) separating two consecutive emissions, the reception of a plurality of successive signal spikes appearing in the course of the same frame. These spikes include spurious spikes (E'n-1, E'n, E'n+1, . . . ) originating from the emitter of another drone, and a useful spike (En-1, En, En+1, . . . ) corresponding to the distance to be estimated. To discriminate these spikes, the following steps are executed: c) for two consecutive frames, comparison of the instants of arrival of the p spikes of the current frame with the instants of arrival of the q spikes of the previous frame and determination, for each of the p.q pairs of spikes, of a corresponding relative time gap; d) application to the p.q gaps determined in step c) of a selection criterion making it possible to retain just a single spike of the current frame; and e) estimation of the distance as a function of the instant of arrival of the spike thus retained.</p>
申请公布号 JP5730300(B2) 申请公布日期 2015.06.10
申请号 JP20120518110 申请日期 2010.06.17
申请人 发明人
分类号 G01S15/10;G01S7/524;G01S7/527 主分类号 G01S15/10
代理机构 代理人
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