ETC (Electronic Tolling Collection) systems develop rapidly in China in order to relieve the traffic congestion. As the key component of the ETC system, the design of the Radio Frequency (RF) transceiver is usually a tedious and experienced based work due to its high non-linearity. An automatic system level optimization method based on Memetic algorithm (MA) is proposed in this paper. A fitness function describing the relationship between receiver output signal-to-noise ratio (SNR out ) and 9 system level parameters was derived and was optimized by the MA method. The correctness of the MA method was verified by the ADS simulation. A close result was obtained and the effects of the 9 parameters on the SNR out  were discussed. The future design of the whole transceiver system can be based on this method.
['Yan Li', 'Lai Jiang', 'Yan Yin', 'F.S. Liu', 'Hang Yu', 'Zhen Ji']
System optimization of a 5.8 GHz ETC receiver using Memetic algorithm