Speed measuring radar system with vehicle direction identification function

• Main Authors: HE DEXI, CHEN JIANSHE, WANG FEI
• Format: Patent
• Language: Chinese; English
• Published: 11.07.2012
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The utility model relates to a speed measuring radar system with a vehicle direction identification function. The speed measuring radar system comprises a frequency source. The frequency source is connected with the input end of a branch line coupler. A transmitting and receiving antenna is connected to the branch line coupler. Coupling ports of the branch line coupler are connected with a first power divider and a second power divider respectively. The first power divider has two paths of output, wherein one path is connected with a mixer through a 90-degree delay line, and the other path is connected with a second mixer. The output end of the second power divider is connected with the first and second mixers respectively. The speed measuring radar system has the advantages of low production cost, compact structure, small volume, high stability, high performance and reliable circuit performance; compared with the other speed measuring radar systems, the speed measuring radar system also has the characteristi