초록 ▼

A method of operating a radar system, including the steps of digitally sampling a received signal at a predetermined sampling rate, to periodically provide a set of selected samples, the set of selected samples including positive going ramp samples, negative going ramp samples and CW burst samples a

A method of operating a radar system, including the steps of digitally sampling a received signal at a predetermined sampling rate, to periodically provide a set of selected samples, the set of selected samples including positive going ramp samples, negative going ramp samples and CW burst samples and performing a first fast Fourier transform (FFT) on the positive going ramp samples, performing a second fast Fourier transform on the negative going ramp samples and performing a third fast Fourier transform on the CW burst samples is described. Utilizing the subsequent radar operations the method further includes the steps of tracking each resulting signal from the first fast Fourier transform performing steps, tracking each resulting signal from the second fast Fourier transform performing steps and tracking each resulting signal from the third fast Fourier transform performing steps and associating any resulting signals from the tracking steps to periodically provide output signals indicative of other vehicles.

대표청구항 ▼

[ What is claimed is:] [1.] A method of operating a radar receiver comprising the steps of:(a) sampling received signals at a predetermined sampling rate to periodically provide a set of selected samples, the set of selected samples including positive going ramp samples, negative going ramp samples

[ What is claimed is:] [1.] A method of operating a radar receiver comprising the steps of:(a) sampling received signals at a predetermined sampling rate to periodically provide a set of selected samples, the set of selected samples including positive going ramp samples, negative going ramp samples and CW burst samples;(b) performing a first fast Fourier transform on the positive going ramp samples, performing a second fast Fourier transform on the negative going ramp samples and performing a third fast Fourier transform on the CW burst samples;(c) tracking one or more signals provided from the first fast Fourier transform performing step, wherein each of the one or more signals provided from the first fast Fourier transform performing step represents a corresponding target and said tracking step provides range, range rate, and acceleration of each corresponding target;(d) tracking one or more signals provided from the second fast Fourier transform performing step wherein each of the one or more signals provided from the second fast Fourier transform performing step represents a corresponding target and said tracking step provides range, range rate, and acceleration of each corresponding target;(e) tracking one or more signals provided from the third fast Fourier transform performing step wherein each of the one or more signals provided from the third fast Fourier transform performing step represents a corresponding target and said tracking step provides range, range rate, and acceleration of each corresponding target; and(f) associating the signals from the tracking steps in a track combiner to periodically provide output signals corresponding to track states of each of the corresponding targets.