Ultrasound imaging method and apparatus using orthogonal Golay codes

摘要

The present invention discloses an ultrasound imaging method and apparatus using a plurality of orthogonal Golay codes so that multi-transmission and reception is available and frame rate is not reduced. The ultrasound imaging method and apparatus uses an M number of Golay codes, wherein M is a positive number more than 2, the M number of Golay codes includes M number of code sequences, and the code sequences of the Golay codes are orthogonal to each other. Ultrasound pulse signals are transmit-focused to a focal point. The M×M number of Golay sequences are divided into M number of groups and then the divided Golay sequences are converted into ultrasound pulse signals. The transmit-focusing is then sequentially performed by the respective groups. Reflected signals from the focal point in response to the transmit-focusing is received by each group and receive-focuses. The received signals are pulse compressed and used to form a B-mode image.