Design of adaptive filter amplifier in UV communication based on DSP

Zhaoshun Lv; Hanping Wu; Junyu Li

doi:10.1117/12.2244669

25 October 2016 Design of adaptive filter amplifier in UV communication based on DSP

Zhaoshun Lv, Hanping Wu, Junyu Li

Proceedings Volume 10158, Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage; 101580B (2016) https://doi.org/10.1117/12.2244669
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China

Abstract

According to the problem of the weak signal at receiving end in UV communication, we design a high gain, continuously adjustable adaptive filter amplifier. Based on proposing overall technical indicators and analyzing its working principle of the signal amplifier, we use chip LMH6629MF and two chips of AD797BN to achieve three-level cascade amplification. And apply hardware of DSP TMS320VC5509A to implement digital filtering. Design and verification by Multisim, Protel 99SE and CCS, the results show that: the amplifier can realize continuously adjustable amplification from 1000 to 10000 times without distortion. Magnification error is ≤%4@1000~10000. And equivalent input noise voltage of amplification circuit is ≤6 nV/ √Hz @30KHz~45KHz, and realizing function of adaptive filtering. The design provides theoretical reference and technical support for the UV weak signal processing.

Citation Download Citation

Zhaoshun Lv, Hanping Wu, and Junyu Li "Design of adaptive filter amplifier in UV communication based on DSP", Proc. SPIE 10158, Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage, 101580B (25 October 2016); https://doi.org/10.1117/12.2244669

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