PULSE SIGNAL SETTING DEVICE, RADAR APPARATUS, METHOD AND PROGRAM OF SETTING PULSE SIGNAL

摘要

A radar apparatus using a pulse pair method to quickly measure a relative speed of an object. The radar apparatus includes: A data acquirer that acquires data relating to a pulse width, a repetition frequency, and a highest staggered ratio; A staggered pattern output unit that outputs a specific staggered pattern in which a total of phase changes within a sweep range of the target of the pulse pairing can be approximated to zero, wherein each phase change is caused by the pulse pairing on a target object at a constant speed due to a difference between an average transmission interval and a transmission interval between transmissions within the sweep range; And a setter that sets the transmission interval of a pulse signal by using the pulse width, the repetition frequency, the highest staggered ratio, and the specific staggered pattern.

主权项

1. A pulse signal setting unit to be applied for a radar apparatus that performs pulse pairing on the complex reception signals by calculating phase change amounts for every predetermined number of sweeps, each complex reception signal obtained from a reflection wave caused by a transmitted pulse signal and reflected on a target object, the pulse signal setting unit comprising:
a setting module configured to set a plurality of set transmission timings, each timing different, by a predetermined period of time, from a reference transmission timing having a predetermined repetition cycle, wherein the setting module sets the plurality of set transmission timings to cause phase change amounts of pulse signals transmitted at the plurality of set transmission timings to be substantially the same as phase change amounts of pulse signals transmitted at the reference transmission timings, for every predetermined number of sweeps.