A method of ultrasound nonlinear imaging with high bit Golay code excitation includes transmitting a first, a second, a third and a fourth Golay code signal wave which are more than four bits and are orthogonal pairs to each other making the second and the forth Golay code signal wave be subtracted from the first and the third Golay code signal wave respectively to eliminate noise interference wave processing compression filter process to above generated waves and cross sum to generate two compressed code waves taking the difference between the two compressed code waves to generate an image wave which includes at least two second-order harmonic waves processing ultrasound nonlinear imaging by using the second-order harmonic waves and to generate an ultrasound image.一種應用於超音波非線性成像之高位元格雷編碼成像方法,發射一四位元以上之高位元編碼之具有正交性之第一、第二、第三與第四格雷編碼信號波形;使第一格雷編碼信號波形減去第二格雷編碼信號波形以消除雜訊波形,並使第三格雷編碼信號波形減去第四格雷編碼信號波形以消除雜訊波形;對上述產生之波形進行壓縮濾波處理並對其進行交叉相加而產生二壓縮編碼波形;使該二壓縮編碼波形彼此相減以產生一成像波形,成像波形包含一至少二成像二階諧波波形;利用成像二階諧波波形進行超音波非線性成像,藉以產生一超音波影像。
