Narrow linewidth semiconductor DFB laser with linear frequency modulation for FMCW LiDAR

2021 ◽  
Author(s):  
Simon Ayotte ◽  
Kéven Bédard ◽  
Michel Morin ◽  
Sylvain Boudreau ◽  
Alexandre Desbiens ◽  
...  
Keyword(s):  
Frequency Modulation ◽  
Linear Frequency Modulation ◽  
Narrow Linewidth ◽  
Linear Frequency ◽  
Dfb Laser

Generation of linear frequency modulation laser source with broadband narrow linewidth using optical phase modulator

2020 ◽  
Vol 49 (2) ◽  
pp. 205004
Author(s):  
许蒙蒙 Xu Mengmeng ◽  
周 煜 Zhou Yu ◽  
孙建锋 Sun Jianfeng ◽  
卢智勇 Lu Zhiyong ◽  
劳陈哲 Lao Chenzhe ◽  
...  
Keyword(s):  
Frequency Modulation ◽  
Linear Frequency Modulation ◽  
Laser Source ◽  
Phase Modulator ◽  
Narrow Linewidth ◽  
Optical Phase ◽  
Linear Frequency

scholarly journals Co-designed radar-communication using linear frequency modulation waveform

2016 ◽  
Author(s):  
Michael J. Nowak ◽  
Zhiping Zhang ◽  
Yang Qu ◽  
Dimitri A. Dessources ◽  
Michael Wicks ◽  
...  
Keyword(s):  
Frequency Modulation ◽  
Linear Frequency Modulation ◽  
Linear Frequency

scholarly journals Designing a waveform using LFM, NLFM for MIMO radar

2017 ◽  
Vol 7 (1.5) ◽  
pp. 84
Author(s):  
G S Krishnam Naidu Yedla ◽  
D. Siva Sankar Prasad ◽  
P. Raghavendra Rao ◽  
M Siva Kumar ◽  
M VenuGopala Rao
Keyword(s):  
Frequency Modulation ◽  
Frequency Component ◽  
Side Lobe ◽  
Mimo Radar ◽  
Linear Frequency Modulation ◽  
Wave Form ◽  
Boundary Segment ◽  
Middle Segment ◽  
Time Frequency ◽  
Linear Frequency

We propose a waveform that includes Linear frequency modulation and non linear frequency modulation wave applicable for MIMO radar. The wave form consists of three segments where the boundary segment consists of LFM content and the middle segment consists of NLFM. The time frequency component in the middle segment is controlled. The range and Doppler side lobe suppression is improved. The genetic algorithm is implemented to suppress the side lobes in the auto correlation and cross correlation functions. The performance is analysed by using ambiguity function.

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