Patent ID: 7956798

Claim:
A radar apparatus for transmitting at least two pulse signals, each of which has a different pulselength, and for receiving echo signals of the transmitted pulse signals, the radar apparatus comprising: a transmitter for transmitting the pulse signals each of which is adapted to detect targets within a different predetermined range according to a specific transmission pattern; a receiver for receiving the echo signals; an echo data generator for generating display echo data for each of at least two range scales selected for on-screen presentation, each display echo data being generated by using an echo signal obtained with the pulse signal having a pulselength adapted to detect targets within one of the selected range scales by the receiver such that at least two display echo data are generated, each of the display echo data corresponding to a different one of the at least two pulse signals; an ARPA processor for generating a single set of motion-related information on each tracked target to be superimposed on the at least two display echo data by using the echo signals obtained with the at least two pulse signals of different pulselengths such that the single set of motion-related information is defined by each of the echo signals used by the echo data generator for generating the display echo data; a display output synthesizer for superimposing the motion-related information on each tracked target generated by the ARPA processor on the display echo data; and a display for displaying a superimposed picture produced by the display output synthesizer.