2005-2007: In cooperation with Professor Woodward Yang of Harvard University, the energy consumption mechanism of nodes in wireless sensor networks was studied, and the energy model of power consumption control and management was proposed. Ii) Complete the analysis of equipment ranging and positioning performance based on IEEE 802. 15.4a standard; 3) * * * Invent patented radio frequency positioning technology, and complete the prototype system design of the indoor positioning system IPS.
As the deputy leader, he participated in the 863 project "Research on Key Technologies of Deep Sea Environment Monitoring Platform Based on Sensor Network" and completed the design of underwater acoustic spread spectrum communication system supporting CDMA mechanism.
Undertake the project of "Wireless Sensor Network for Metallurgical Equipment Fault Diagnosis", and realize the bearing temperature monitoring system of continuous annealing furnace in cold rolling plant with the network scale of 4 18 nodes.
2004-2005: Studied the design platform of reconfigurable artificial neural network processor, and designed the reconfigurable artificial neural network processor for intelligent control system. In the project, I am mainly responsible for designing the architecture of reconfigurable artificial neural network processor, reconfigurable unit and mapping algorithm in specific artificial neural network processor.
2003-2005: Studied the digital encryption processor with coarse-grained reconfigurable unit, designed the reconfigurable encryption processor based on DES/3DES, AES and other encryption algorithms, and was mainly responsible for the design of reconfigurable unit, reconfigurable encryption processor architecture and user interface.
200 1-2005: As the project leader, I undertook the sub-project "Research on the Core Technology of Interactive Cable Digital TV Channel Transmission" of the Beijing Science and Technology Major Project (J.S.F. [2002] 188), and cooperated with DigiBroad Company in fremont, California, USA to complete the research work. Mainly responsible for the design of low-power VLSI DSP, including: FIR filter, PLL clock recovery, digital PLL (DPLL), automatic gain control (AGC), equalizer, carrier recovery, etc. At the same time, a system-on-a-chip (SOC) including physical layer and MAC/LLC layer broadband communication is designed, and the following achievements are achieved: A digital cable HDTV communication channel demodulation chip (Jupiter) supporting DVB-C is developed, which was successfully streamed in TSMC in April 2003, and an embedded protocol stack of 0.25u conforming to European DOCSIS cable modulation and demodulation specification is completed. The whole project passed the acceptance of Beijing Science and Technology Commission in August 2005.