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This work presents an parallel analog-to-digital converter based on compressive sensing theory to process compressive/sparse signal below Nyquist Sampling Rate. Linear feedback shift registers (LFSR) are adopted to generate a 0/1 pseudo random sequence and a first-order delta-sigma ADC is presented to computes the inner product of random signals in our design. Besides, random sampling is achieved...
This paper presents a single loop 3rd order 5-bit audio ΣΔ modulator with feed forward path. Feed forward technology relaxes the amplifier design requirement by reducing output swing of the integrators. Chopper stabilization technology is employed to mitigate the flicker noise introduced by 1st integrator. A kind of asynchronous successive approximation (SAR) quantizer without extra fast clock replaces...
Based on Hamilton' Markov regime-switching model applied to postwar U.S. business cycle (1989,1994), the paper uses Chinese import and export data from January 1999 to November 2010 to describe and investigate the dynamic growth path of China's foreign trade. The empirical results suggest that the growth path of China's foreign trade can be classified as long-term expansion regime??i1999.01~2008.08...
This paper presents a high precision multi-bit audio ΔΣ modulator working under IV supply. We propose a kind of asynchronous 4-bit successive approximation quantizer without fast clock generation. Feed-forward topology with digital summing is adopted to relax the amplifier design requirement. Power efficient single stage OTA is adopted to drive the large sampling capacitor with...
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