Range resolving method

Communications: directive radio wave systems and devices (e.g. – Determining distance – With pulse modulation

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342145, G01S 1312

Patent

active

049548301

ABSTRACT:
A method is provided for calculating the unambiguous ranges of a radar target in a radar system employing multiple PRFs. The radar system provides digitized data items indicative of return signals in each of a plurality of range intervals for each PRF. A base PRF is selected and a range interval containing a target return signal is selected therefrom. This range interval is correlated with particular range intervals of the remining PRFs to find specific target return signals therefrom which satisfy a first predetermined relationship. This relationship generally provides that a target is identified if a preselected number of correlated range intervals of all PRFs have target return signals therein. If this relationship is satisfied, the target range is calculated from a range equation.

REFERENCES:
patent: 3765017 (1973-10-01), Dentino
patent: 4015261 (1977-03-01), Campbell
patent: 4057800 (1977-11-01), Ganz
patent: 4106019 (1978-08-01), Alexander et al.
patent: 4143373 (1979-03-01), Chernick

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