Therefore, the first detectable path is the direct path.
The algorithm starts by assuming that the first peak is the direct path of some arbitrary target.
It is clear that the cooperative system can be divided into two paths, that is, the direct path and the relay path.
where s d (k) is the direct path signal component of the first microphone and (hat {s} k)) is the output signal of the beamformer in the time domain.
where τ ̄ kn is the second-order (double bounce) multipath time delay from the k th wall and n th subreflector, τ 1 is the direct path.
In the figure, path number 1 is the direct path reflected by a human body, path number 2 receives static background signals, and path number 3 contains multiple reflections from a human body and background objects together.
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In addition, it is the relationship between ϕ 0,m,q,1≤m≤M q, characterizing the sinusoids of the shortest paths to the array elements, that will contain the location information of the MT, if the shortest paths are the direct paths.
One is the radar channel antenna which is used to collect reflected signal, while the other is the direct-path channel antenna which is used to collect direct-path signal.
The lake threatens more than one million survivors, and authorities are evacuating people who would be in the direct path of any flooding.
