초록

A moving target indicator system in which quadrature components of each range cell of returned target reflections are produced by phase comparison with the transmitted signals and compared by weighting three successive returns to obtain moving target differences for display.

대표청구항 ▼

A radar system processor for detecting signals in the presence of clutter comprising: means for deriving signals from reflections of directively radiated groups of at least three radar pulses in which the interpulse periods in each group are equal; detector means for extracting components of receive

A radar system processor for detecting signals in the presence of clutter comprising: means for deriving signals from reflections of directively radiated groups of at least three radar pulses in which the interpulse periods in each group are equal; detector means for extracting components of received signals phase related to said pulses; means for sampling said components at intervals in time corresponding to ranges of reflections; means for storing the sequences of samples generated by said sampling means during said interpulse periods; a plurality of velocity filters; said filters having means for weighting each sequence of stored samples with weighting coefficients; at least some of said weighting coefficients being different for different velocity filters; and means for normalizing the outputs of different ones of said velocity filters as a function of said clutter passing through said different filters.