WANG Meng-xing, LIU Dan, XIONG Xing-yin, et al. Optimal design of Σ-Δ MEMS accelerometer based on multi-objective genetic algorithm[J]. 2018, (5): 64-66+69.
WANG Meng-xing, LIU Dan, XIONG Xing-yin, et al. Optimal design of Σ-Δ MEMS accelerometer based on multi-objective genetic algorithm[J]. 2018, (5): 64-66+69. DOI: 10.13873/j.1000-9787(2018)05-0064-03.
To address the stability problem which occurs in high-order Σ-Δ micro-electro-mechanical system( MEMS) accelerometer design using single-objective genetic algorithm
a MEMS accelerometer loop filter optimal design methodology based on multi-objective genetic algorithm( MOGA) is proposed. For 3 rd-order non-finiteΣ-Δ MEMS accelerometer system
MOGA is adopted
loop filter parameters are designed and optimized using both signal to noise ratio( SNR) and infinity norm as design targets.Compared to single-objective genetic algorithm which optimize only for SNR
MOGA improves phase margin significantly
double the maximum stable input signal range
and enhance system robustness to technique error of MEMS sensitive element