Description
Return a thin-gate radar sampling-volume approximation.
Radar and lidar measurements combine propagation distance, pulse/gate geometry, background and instrument response. A local range or normalization term can be useful without detecting a target, retrieving atmospheric properties or establishing calibrated sampling resolution.
Return a thin-gate radar sampling-volume approximation.
When to use this tool
Use Radar Range Gate Volume Term when checking the stated radar/lidar geometry, signal or transmission convention.
How to use the tool and how it works
- Enter range, solidAngleSteradians, gateDepth. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read approximateVolume. Use the output convention below.
Return a thin-gate radar sampling-volume approximation. Require nonnegative range/gateDepth and solid angle in [0,4*pi]; approximateVolume = range²*solidAngle*gateDepth.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| range | Range | Required. Finite number; minimum 0. |
| solidAngleSteradians | Solid Angle Steradians | Required. Finite number; minimum 0. |
| gateDepth | Gate Depth | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| approximateVolume | Approximate Volume | Required. Finite number. |
{
"input": {
"range": 100,
"solidAngleSteradians": 0.01,
"gateDepth": 10
},
"output": {
"approximateVolume": 1000
}
}Limitations and assumptions
- This assumes an appropriate thin gate and supplied beam solid angle; finite radial-shell geometry and weighted radar response are not integrated.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use verified instrument calibration and a complete appropriate retrieval/response model, including geometry and signal uncertainty, for actual remote-sensing conclusions.
References
Similar or alternative tools
- Radar Range Resolution Pulse Width Term
Return ideal uncompressed radar range resolution.
- Radar Gate Overlap Fraction
Return target overlap with a positive-width radar gate.