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A body sensor node system-on-chip (SoC) is designed and implemented. The SoC integrates analog front end (AFE), a high-resolution analog-to-digital converter (ADC), an RF-to-DC rectifier, a low dropout (LDO) regulator, and a digital signal processing (DSP) block. The batteryless SoC is powered by RF of 2.45GHz. The rectifier generates 1.8V output and the LDO converts the voltage to stable 1.6V supply...
The digital channelized receiver is an efficient way to deal with broadband signal. In this paper, one kind of channelized algorithm based on poly-phase filter is derived. We discussed the realization of a multi-channel receiver applied to the software radio platform in details. The computing core of this platform is FPGA. Simulation result of the channelized receiver is given. The test in practical...
Timing recovery loops with low loop delay are desirable. This paper presents receiver architectures with asynchronous equalization to reduce the loop delay. We propose a new asynchronous delayed least-mean-square (AD-LMS) adaptation algorithm together with an interaction-free loop to eliminate interaction between timing and equalization loops. In addition, a timing recovery scheme to reduce the timing...
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