Speckle Reduction for Ultrasonic Imaging Using Frequency Compounding and Despeckling Filters along with Coded Excitation and Pulse Compression

Figure 1

Compression of the 𝑦(𝑡) is represented by 𝑦_𝑐(𝑡) and the log-compressed and envelope-detected version of 𝑦_𝑐(𝑡).

(a)

(b)