Coordinate system transformation apparatus for a high resolution radar

DETAILED DESCRIPTION It is an object of the present invention to reduce the number of computations required to produce an image in a high resolution radar system.
It is another object of the present invention to simplify signal processing of the received radar signal.
It is an additional object of the present invention to reduce the size and/or complexity of the signal processor for the return echoes of the radar signal.
It is a further object of the present invention to prebias the transmitted signal to reduce return signal processing load.
The present invention accomplishes the above objects by providing an apparatus that prebiases the transmitted signal to remove the need for processing in one dimension.
The system uses a map function generator to produce small frequency (phase) changes in the transmitted signal during each pulse over the entire integration or exposure period which produces a dimensionally transformed return signal that only requires interpolation in a single dimension.
These together with other objects and advantages which will be subsequently apparent, reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout.