Meter-wave MIMO radar low elevation angle estimation method based on beam space

• Main Authors: BI JINGXIN, ZHAO YONGBO, PANG XIAOJIAO, CHEN SHENG
• Format: Patent
• Language: Chinese; English
• Published: 23.10.2020
• 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 invention discloses a meter-wave MIMO radar low elevation angle estimation method based on a beam space. The meter-wave MIMO radar low elevation angle estimation method comprises the following steps of: step 1, establishing an MIMO radar signal receiving model; step 2, converting the MIMO radar signal receiving model from an array element space to the beam space according to a preset transmitting beam and a preset receiving beam; step 3, constructing a beam space composite steering vector according to the preset transmitting beam and the preset receiving beam; and step 4, performing targetelevation angle estimation in the beam space according to the beam space composite steering vector to obtain a direct wave low elevation angle estimation value. According to the meter-wave MIMO radarlow elevation angle estimation method based on the beam space provided by the invention, the beam space is constructed, the array element space is synthesized into a plurality of beams and then DOA estimation is performed on