seasonder_computeBinsRadialVelocity: Compute Radial Velocities for Doppler Bins

In SeaSondeR: Radial Metrics from SeaSonde HF-Radar Data

Compute Radial Velocities for Doppler Bins

Description

This function calculates the radial velocities corresponding to the Doppler bins in a SeaSondeRCS object, based on the provided Doppler frequencies. The calculation uses the radar's wave number and Bragg angular frequencies.

Usage

seasonder_computeBinsRadialVelocity(seasonder_cs_object, freq)

Arguments

seasonder_cs_object	A SeaSondeRCS object containing data and metadata necessary for the calculation of Doppler bin frequencies and velocities.
freq	A numeric vector representing the Doppler frequencies for which the radial velocities are to be calculated.

Details

The radial velocity v for each Doppler bin is computed using the formula:

v = \frac{\text{Freq} - \text{BraggFreq}}{2 \cdot k_0}

where:

• \text{Freq} is the Doppler frequency of the bin.

• \text{BraggFreq} is the Bragg Doppler angular frequency for the bin.

• k_0 is the radar wave number divided by 2\pi.

The Bragg frequency is negative for bins with frequencies below zero and positive for bins with frequencies above zero.

Value

A numeric vector containing the radial velocities (in meters per second, m/s) corresponding to the provided Doppler frequencies.

See Also

seasonder_getBraggDopplerAngularFrequency to retrieve the Bragg angular frequencies. seasonder_getRadarWaveNumber to obtain the radar wave number.

SeaSondeR documentation built on June 8, 2025, 10:50 a.m.