Radar operation with enhanced Doppler capability

摘要

The method may include generating a repetitive sequence of N constant frequency pulses of width t seconds with a T-second inter-pulse interval for transmission, each pulse in the sequence identified according to a quadrature sequence And that phase is applied to each pulse in the first direction of modulation. The method may further comprise modulating the phase of received echo energy received from one or more objects that reflect a repetitive sequence of transmitted N constant frequency pulses, wherein the second direction of modulation Is opposite to the first direction of modulation. The method further includes performing N unique discontinuous frequency transformations of the received echo energy from the modulated received echo energy as a function of the range r of the reflecting object, a magnitude equal to a multiple of 1 / NT Hz. The frequency transform may preserve the spectrum of received echo energy and combine to form a composite signal frequency spectrum.