Single-bit random frequency-controlled array radar target distance-angle joint estimation method

• Main Authors: JIA WEI, ZUO YUHENG, CHEN SHENGYAO, SONG ZEREN
• Format: Patent
• Language: Chinese; English
• Published: 02.02.2021
• 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 single-bit random frequency-controlled array radar target distance-angle joint estimation method, which comprises the following steps of: dividing a scanning space into discrete grids jointly expressed by distance-angle, constructing a single-bit compressed sensing measurement model of a target on discrete grid points according to a radar echo signal model and a single-bit sampling principle, constructing a radar baseband echo signal single-bit compressed sensing measurement model of a target at any position in a scanning space based on an interpolation technology, and finally sequentially estimating the deviation values between the nearest grid point, the real distance and the angle of the target and the nearest grid point by using a single-bit compressed sensingreconstruction algorithm, and thus, estimated values of the target distance and angle are obtained. Aiming at broadband and ultra-wideband radars, the problems of complex sampling system, large datavolume, low sampling rate