Calculate Radial Velocity Resolution

Computes the radial velocity resolution for a SeaSonde radar cross-section (CS) object. This measurement indicates the smallest change in velocity that the radar can discern between different targets or scatterers within its observation area. The calculation is based on the Doppler spectrum resolution and the radar wave number, providing a crucial parameter for analyzing the radar's capability to distinguish between velocities.

Usage

seasonder_getRadialVelocityResolution(seasonder_cs_object)

Arguments

seasonder_cs_object

A SeaSondeRCS object created using seasonder_createSeaSondeRCS. This object contains the necessary data to calculate the Doppler spectrum resolution and, subsequently, the radial velocity resolution.

Value

A single numeric value representing the radial velocity resolution in meters per second (m/s), indicating the radar's ability to differentiate between closely spaced velocities.

Details

The radial velocity resolution \(v_{res}\) is determined using the formula: $$v_{res} = \frac{\text{SpectraRes}}{2 \cdot k_0}$$ where \(v_{res}\) is the radial velocity resolution, \(\text{SpectraRes}\) is the Doppler spectrum resolution, and \(k_0\) is the radar wave number divided by \(2\pi\). This formula reflects the relationship between the frequency resolution of the radar's Doppler spectrum and the corresponding velocity resolution, taking into account the wave number which is a fundamental characteristic of the radar system.

See also

seasonder_getDopplerSpectrumResolution, seasonder_getRadarWaveNumber