Tzu-Hao Yu

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A single-chip reconfigurable Color Doppler DSP engine is presented. It acts as the computation kernel of the high-frequency ultrasonic imaging system under development. The flexibility of the proposed DSP engine enables users to acquire sufficient information as needed, while the specificity of the hardware compared to general-purpose processors reduces(More)
—Fast Fourier transform (FFT) is the demodulation kernel in the DVB-H system. In this paper, we firstly propose an FFT processor that reduces the power consumption by decreasing the usage of main memory, and timely turning off the unused memory partitions in different sizes of the FFT. Second, the triple-mode conflict-free address generator is proposed to(More)
Fast Fourier transform (FFT) and inverse FFT (IFFT) are adopted as the demodulation/modulation kernels in OFDM systems. The lengths of FFT/IFFT operations may vary in different applications of OFDM systems. Moreover, due to the trend of system-on-chip (SOC), rapid prototyping and intelligent soft IP designs are important design methodologies. In this paper,(More)
A novel analysis methodology on the quantization effect of existing CORDIC algorithms is presented. Based on the methodology, we first verified that MSR-CORDIC is a much favorable candidate for rotation-based applications due to its high numerical precision. Then, a new design flow is proposed to determine an ideal configuration for MSR-CORDIC with(More)
A novel on-line mixed-scaling-rotation CORDIC (MSR-CORDIC) VLSI architecture is proposed. This architecture not only maintains the scaling-free property of the original MSR-CORDIC, but also achieves the target of on-line angle computation. Compared with other existing CORDIC solutions, the proposed architecture is faster and more cost-efficient, especially(More)
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