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Sources for references added, minor wording changes and additional no…
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…de for speckles-induced noise.
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@TimoHinsemann
TimoHinsemann committed Aug 21, 2024
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57 changes: 33 additions & 24 deletions data.json
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"title": "Time domain signal",
"decomBlock": "Pre-processing",
"description": "The time-dependent beat signal before digital processing",
"references": "",
"references": "[1004, Elghandour and Ren, Modeling and comparative study of various detection techniques for FMCW LIDAR using optisystem, https://doi.org/10.1117/12.2034878]",
"nodeType": "systemIndependent"
},
{
Expand All @@ -32,7 +32,7 @@
"title": "Signal thresholding",
"decomBlock": "Pre-processing",
"description": "The tresholding is influences the the false detection and true detection.",
"references": "",
"references": "[1004, Gu et al., Learning Moving-Object Tracking with FMCW LiDAR, https://doi.org/10.1109/IROS47612.2022.9981346]",
"nodeType": "designParameter"
},
{
Expand All @@ -41,16 +41,16 @@
"title": "Signal windowing",
"decomBlock": "Pre-processing",
"description": "The windowing of the time domain signal influences the frequency domain.",
"references": "",
"references": "[1004, Gu et al., Learning Moving-Object Tracking with FMCW LiDAR, https://doi.org/10.1109/IROS47612.2022.9981346]",
"nodeType": "designParameter"
},
{
"id": "1004",
"parentIds": ["1000", "1100"],
"title": "Detection algorithm",
"decomBlock": "Detection identification",
"description": "The choice of the peak detection algorithm defined the false detection and true detection.",
"references": "",
"description": "The choice of the peak detection algorithm defines the false detection and true detection.",
"references": "[1000, Gu et al., Learning Moving-Object Tracking with FMCW LiDAR, https://doi.org/10.1109/IROS47612.2022.9981346] [1100, Gu et al., Learning Moving-Object Tracking with FMCW LiDAR, https://doi.org/10.1109/IROS47612.2022.9981346]",
"nodeType": "designParameter"
},
{
Expand All @@ -59,25 +59,25 @@
"title": "Incoupling efficiency",
"decomBlock": "Reception",
"description": "Capablity to inject the returned light in the single mode waveguides.",
"references": "[1005, Schwab et al., Coupling light emission of single-photon sources into single-mode fibers: mode matching; coupling efficiencies and thermo-optical effects, https://opg.optica.org/oe/fulltext.cfm?uri=oe-30-18-32292&id=493226]",
"references": "[1001, Li et al., Analysis on coupling efficiency of the fiber probe used in frequency scanning interference distance measurement, https://doi.org/10.1016/j.ijleo.2019.164006] [1001, Schwab et al., Coupling light emission of single-photon sources into single-mode fibers: mode matching; coupling efficiencies and thermo-optical effects, https://opg.optica.org/oe/fulltext.cfm?uri=oe-30-18-32292&id=493226]",
"nodeType": "effect"
},
{
"id": "1006",
"parentIds": ["1005"],
"parentIds": ["1005", "1023"],
"title": "Speckles",
"decomBlock": "Signal propagation",
"description": "Coherent light effect due to rough surfaces.",
"references": "[1006, Dainty, The Statistics of Speckle Patterns, https://www.sciencedirect.com/science/article/abs/pii/S007966380870249X?via%3Dihub]",
"references": "[1023, Baumann et al., Speckle phase noise in coherent laser ranging: fundamental precision limitations, http://dx.doi.org/10.1364/OL.39.004776]",
"nodeType": "effect"
},
{
"id": "1007",
"parentIds": ["1005"],
"title": "Other Losses",
"decomBlock": "Signal propagation",
"description": "Includes all other optical losses, like material absorptions, Fresnel reflections ...",
"references": "",
"description": "Includes all other optical losses, like material absorptions, Fresnel reflections.",
"references": "[1005, Son et al., High-efficiency broadband light coupling between optical fibers and photonic integrated circuits, https://doi.org/10.1515/nanoph-2018-0075]",
"nodeType": "designParameter"
},
{
Expand All @@ -95,25 +95,25 @@
"title": "Wavelength",
"decomBlock": "Emission",
"description": "System central wave length.",
"references": "",
"references": "[1019, DIN, DIN EN 60825-1:2022-07, https://www.vde-verlag.de/standards/0800758/din-en-60825-1-vde-0837-1-2022-07.html][1006, Dainty et al., Laser Speckle and Related Phenomena, https://link.springer.com/chapter/10.1007/978-3-662-43205-1_2]",
"nodeType": "designParameter"
},
{
"id": "1010",
"parentIds": ["1005", "1006"],
"parentIds": ["1005", "1023"],
"title": "Scan Speed",
"decomBlock": "Emission",
"description": "The angular speed of non-solid state scan units. Mitgates the speckle effect but reduces coupling efficiency.",
"references": "[1010, Dabas et al., Characterization of pulsed coherent Doppler LIDAR with the speckle effect, https://opg.optica.org/ao/abstract.cfm?uri=ao-33-27-6524]",
"description": "The angular speed of non-solid state scan units. Mitgates speckle-induced noise but reduces coupling efficiency.",
"references": "[1023, Baumann et al., Speckle phase noise in coherent laser ranging: fundamental precision limitations, http://dx.doi.org/10.1364/OL.39.004776]",
"nodeType": "designParameter"
},
{
"id": "1011",
"parentIds": ["1006"],
"parentIds": ["1023"],
"title": "Target Distance and Velocity",
"decomBlock": "Signal propagation",
"description": "The distance and velocity of the target to be measured.",
"references": "",
"references": "[1023, Baumann et al., Speckle phase noise in coherent laser ranging: fundamental precision limitations, http://dx.doi.org/10.1364/OL.39.004776, Impact of scan speed on speckle-induced noise being used as confirmation of dependency between relative movement of target and sensor.]",
"nodeType": "systemIndependent"
},
{
Expand All @@ -131,7 +131,7 @@
"title": "Beam quality",
"decomBlock": "Emission",
"description": "The overall beam quality influence the beam propgation and thus the coupling efficiciency.",
"references": "",
"references": "[1005, Ding et al., Study of Fiber Coupling Efficiency and Adaptive Optics Correction Technique in Atmospheric Slant-Range Channels, https://doi.org/10.20944/preprints202309.1784.v1]",
"nodeType": "effect"
},
{
Expand All @@ -140,7 +140,7 @@
"title": "Output power",
"decomBlock": "Emission",
"description": "The power of each beam. More power allows a better coupling efficiency.",
"references": "",
"references": "[1005, Son et al., High-efficiency broadband light coupling between optical fibers and photonic integrated circuits, https://doi.org/10.1515/nanoph-2018-0075]",
"nodeType": "designParameter"
},
{
Expand All @@ -149,7 +149,7 @@
"title": "Entrance pupil",
"decomBlock": "Reception",
"description": "The entrance pupil (aperture) of the optical system.",
"references": "",
"references": "[1005, Son et al., High-efficiency broadband light coupling between optical fibers and photonic integrated circuits, https://doi.org/10.1515/nanoph-2018-0075]",
"nodeType": "designParameter"
},
{
Expand All @@ -158,7 +158,7 @@
"title": "Beam size",
"decomBlock": "Emission",
"description": "Size of the out-going laser beam.",
"references": "",
"references": "[1013, Edmund Optics GmbH, Beam Quality and Strehl Ratio, https://www.edmundoptics.com/knowledge-center/application-notes/lasers/beam-quality-and-strehl-ratio/, See Strehl Ratio.]",
"nodeType": "systemIndependent"
},
{
Expand All @@ -167,7 +167,7 @@
"title": "PIC mode field",
"decomBlock": "Emission",
"description": "The mode field distribution used for beam generation and in-coupling.",
"references": "",
"references": "[1005, Son et al., High-efficiency broadband light coupling between optical fibers and photonic integrated circuits, https://doi.org/10.1515/nanoph-2018-0075] [1016, Son et al., High-efficiency broadband light coupling between optical fibers and photonic integrated circuits, https://doi.org/10.1515/nanoph-2018-0075]",
"nodeType": "designParameter"
},
{
Expand All @@ -176,7 +176,7 @@
"title": "Focal length",
"decomBlock": "Emission",
"description": "Focal length of the optical system.",
"references": "",
"references": "[1016, Pan et al., Micron-precision measurement using a combined frequency-modulated continuous wave ladar autofocusing system at 60 meters standoff distance, https://doi.org/10.1364/OE.26.015186]",
"nodeType": "designParameter"
},
{
Expand All @@ -185,7 +185,7 @@
"title": "Laser Safety Class",
"decomBlock": "Emission",
"description": "The laser safety class limits the optical power that can be used.",
"references": "[1014, Laser Norm, DIN EN 60825-1:2022-07, https://www.vde-verlag.de/standards/0800758/din-en-60825-1-vde-0837-1-2022-07.html]",
"references": "[1014, DIN, DIN EN 60825-1:2022-07, https://www.vde-verlag.de/standards/0800758/din-en-60825-1-vde-0837-1-2022-07.html]",
"nodeType": "systemIndependent"
},
{
Expand All @@ -194,7 +194,7 @@
"title": "Wavefront Errors",
"decomBlock": "Emission",
"description": "The overall wavefront errors of the optical system influence the beam quality",
"references": "",
"references": "[1013, Edmund Optics GmbH, Beam Quality and Strehl Ratio, https://www.edmundoptics.com/knowledge-center/application-notes/lasers/beam-quality-and-strehl-ratio/, See Strehl Ratio.]",
"nodeType": "designParameter"
},
{
Expand All @@ -214,5 +214,14 @@
"description": "General noises influencing the chirp linearity and stability and thus the SNR of the detection. Better chirp linearity improves SNR.",
"references": "",
"nodeType": "designParameter"
},
{
"id": "1023",
"parentIds": [],
"title": "Speckle-induced noise",
"decomBlock": "Signal propagation",
"description": "Phase noise created by speckle effect.",
"references": "",
"nodeType": "effect"
}
]

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