# slant2grndrngres

Convert slant range resolution to ground range resolution

## Syntax

``grndrngres = slant2grndrngres(slrngres,grazang)``

## Description

example

````grndrngres = slant2grndrngres(slrngres,grazang)` returns the ground range resolution `grndrngres` corresponding to the slant range resolution `slrngres` and the grazing angle `grazang`.```

## Examples

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Determine the ground range resolution given a slant range resolution of 2 m and a grazing angle of 30${}^{\circ }$.

```slrngres = 2; grazang = 30;```

Compute the ground range resolution.

`grndrngres = slant2grndrngres(slrngres,grazang)`
```grndrngres = 2.3094 ```

## Input Arguments

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Slant range resolution in meters, specified as a positive real scalar or a vector.

Data Types: `double`

Grazing angle in degrees, specified as a scalar in the range [`0`, `90`] or a vector.

Data Types: `double`

## Output Arguments

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Ground range resolution in meters, returned as a matrix. The rows in `grndrngres` correspond to the slant range resolutions in `slrngres` and the columns correspond to the grazing angles in `grazang`.

## References

[1] Doerry, Armin W. "Performance Limits for Synthetic Aperture Radar," 2nd Ed. Sandia National Laboratories, SAND2006-0821, February 2006.

[2] Carrara, Walter G., Ron S. Goodman, and Ronald M. Majewski. Spotlight Synthetic Aperture Radar: Signal Processing Algorithms. The Artech House Remote Sensing Library. Boston, Artech House, 1995.

## Version History

Introduced in R2021b