Title :
Signal modulation schemes comparison in the telemetry unit for retinal prosthesis system
Author :
Zou, Yuexian ; Zheng, YaH ; Jin, Yufeng ; Shi, Guangyi
Author_Institution :
Shenzhen Grad. Sch., Key Lab. of Integrated Microsyst., Peking Univ., Beijing
Abstract :
Telemetry unit for the data and power transmission is a key part of the retinal prosthesis system using to restore vision for the visual impairments. The design of the modulator and demodulator for the telemetry unit plays important roles in determining the performance of the retinal prosthesis system. ASK, FSK and PSK are identified as the most popular modulation schemes. In this paper, we investigate and compare the performance of the three modulation schemes in terms of the power dissipation, data transmission rate, occupation area, insensitivity, etc. The conclusion is made regarding to the option of the modulation scheme for our retinal prosthesis system with 16*16 scale of microelectrode array.
Keywords :
amplitude shift keying; biomedical electrodes; biomedical telemetry; eye; frequency shift keying; microelectrodes; phase shift keying; prosthetics; vision defects; ASK; FSK; PSK; demodulator design; microelectrode array; modulator design; power transmission; retinal prosthesis system; signal modulation schemes; telemetry unit; vision restoration; visual impairment; Amplitude shift keying; Demodulation; Frequency shift keying; Phase shift keying; Power system restoration; Power transmission; Prosthetics; Retina; Signal restoration; Telemetry; ASK; FSK; PWM; modulation; retinal prosthesis;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems, 2009. NEMS 2009. 4th IEEE International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4244-4629-2
Electronic_ISBN :
978-1-4244-4630-8
DOI :
10.1109/NEMS.2009.5068660
