FPGA Implementation of an Amplitude-Modulated Continuous-Wave Ultrasonic Ranger Using Restructured Phase-Locking Scheme

<table>Reference and ultrasonic signals obtained from IR Sine LUT and US Sine LUT for <math id="M48" xmlns="http://www.w3.org/1998/Math/MathML"><mrow><msup><mrow><mn>45</mn></mrow><mrow><mo>°</mo></mrow></msup></mrow></math> phase shift (Simulation).</table>

VLSI Design

fig12

Figure 12

Figure 12: FPGA Implementation of an Amplitude-Modulated Continuous-Wave Ultrasonic Ranger Using Restructured Phase-Locking Scheme 