Clock control circuit of a microwave pulse radar for transmission and sampling clock control

摘要

#CMT# #/CMT# The circuit generates a transmission clock and a sample clock. It includes a first oscillator (20) to generate a first clock of a first frequency and a second oscillator (21) to generate several spaced in time second clocks of a second frequency. The circuit is arranged such that the transmission clock is provided to a transmission pulse generator (2) and the sample clock is provided to a sampling pulse generator based on the first and second clocks. #CMT# : #/CMT# Independent claims also cover a method of generating the clocks and a distance measuring apparatus using such a circuit. #CMT#USE : #/CMT# For a distance measuring apparatus such as a radar. #CMT#ADVANTAGE : #/CMT# The clock control is accurate and reliable. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a circuit diagram of the clock generator. 2 : transmission pulse generator 3 : coupler 4 : antenna 5 : mixer 6 : sampling pulse generator 7 : output 20 : oscillator 21 : oscillator 23 : difference imager 24 : output 25 : regulator 26 : target value 31 : delay 32 : delay 33 : differencer 34 : differential frequency 35 : differencer 36 : differential frequency 37 : selector 38 : input.