Instantaneous frequency tracking of a sine wave phase modulation signal

2002 ◽  
Author(s):  
V. Valeau ◽  
J.C. Valiere ◽  
P. Herzog ◽  
L. Simon ◽  
C. Depollier
Keyword(s):  
Instantaneous Frequency ◽  
Phase Modulation ◽  
Sine Wave ◽  
Frequency Tracking ◽  
Wave Phase ◽  
Modulation Signal

Pulse Noise Characteristics of Dual Optical Path of Integrated Optical Waveguide Gyro Using Triangle Wave Phase Modulation

2018 ◽  
Vol 24 (4) ◽  
pp. 377-384
Author(s):  
郑永秋 ZHENG Yong-qiu ◽  
张清 ZHANG Qing ◽  
张成飞 ZHANG Cheng-fei ◽  
陈佳敏 CHEN Jia-min
Keyword(s):  
Optical Waveguide ◽  
Phase Modulation ◽  
Optical Path ◽  
Pulse Noise ◽  
Wave Phase ◽  
Noise Characteristics ◽  
Integrated Optical ◽  
Integrated Optical Waveguide

Resonator fiber optic gyro using the triangle wave phase modulation technique

2008 ◽  
Vol 281 (4) ◽  
pp. 580-586 ◽  
Author(s):  
Diqing Ying ◽  
Huilian Ma ◽  
Zhonghe Jin
Keyword(s):  
Phase Modulation ◽  
Fiber Optic ◽  
Fiber Optic Gyro ◽  
Modulation Technique ◽  
Wave Phase

Transient response of a resonator fiber optic gyro with triangular wave phase modulation

2010 ◽  
Vol 49 (32) ◽  
pp. 6253 ◽  
Author(s):  
Huilian Ma ◽  
Yan Chen ◽  
Mucheng Li ◽  
Zhonghe Jin
Keyword(s):  
Transient Response ◽  
Phase Modulation ◽  
Fiber Optic ◽  
Fiber Optic Gyro ◽  
Triangular Wave ◽  
Wave Phase

Analysis of Kerr effect in resonator fiber optic gyros with triangular wave phase modulation

2010 ◽  
Vol 49 (3) ◽  
pp. 529 ◽  
Author(s):  
D. Ying ◽  
M. S. Demokan ◽  
X. Zhang ◽  
W. Jin
Keyword(s):  
Kerr Effect ◽  
Phase Modulation ◽  
Fiber Optic ◽  
Triangular Wave ◽  
Wave Phase

scholarly journals Absolute and Precise Terahertz-Wave Radar Based on an Amplitude-Modulated Resonant-Tunneling-Diode Oscillator

Photonics ◽  
2018 ◽  
Vol 5 (4) ◽  
pp. 52 ◽  
Author(s):  
Adrian Dobroiu ◽  
Ryotaka Wakasugi ◽  
Yusuke Shirakawa ◽  
Safumi Suzuki ◽  
Masahiro Asada
Keyword(s):  
Resonant Tunneling ◽  
Modulation Frequency ◽  
Propagation Distance ◽  
Sine Wave ◽  
Terahertz Wave ◽  
Resonant Tunneling Diode ◽  
Tunneling Diode ◽  
Wave Radar ◽  
Diode Oscillator ◽  
Modulation Signal

We present the principle of a terahertz-wave radar and its proof-of-concept experimental verification. The radar is based on a 522 GHz resonant-tunneling-diode oscillator, whose terahertz output power can be easily modulated by superimposing the modulation signal on its bias voltage. By using one modulation frequency and measuring the time delay of the returning signal, a relative measurement of the propagation distance is possible; adding a second modulation frequency removes the ambiguity stemming from the periodicity of the modulation sine wave and allows an absolute distance measurement. We verified this measurement method experimentally and obtained a submillimeter precision, as predicted by theory.

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