seasonder_SmoothFORSS: Smooth Self-Spectra for First Order Region (FOR)

In SeaSondeR: Radial Metrics from SeaSonde HF-Radar Data

Smooth Self-Spectra for First Order Region (FOR)

Description

This function applies a smoothing operation to the self-spectra (SS) matrix of antenna 3 in a SeaSondeR cross-spectral object, specifically for First Order Region (FOR) processing. The smoothed self-spectra are stored as an attribute within the object.

Usage

seasonder_SmoothFORSS(seasonder_cs_object)

Arguments

seasonder_cs_object

A SeaSondeRCS object containing self-spectra data.

Details

The function retrieves the default Doppler smoothing factor (nsm) from seasonder_getFOR_parameters and applies the smoothing operation using seasonder_SmoothSS on the self-spectra of antenna 3.

Steps:

1. Retrieve the Doppler smoothing factor (nsm).

2. Apply the sliding mean smoothing to the self-spectra of antenna 3.

3. Store the smoothed matrix as an attribute within the SeaSondeRCS object.

The smoothing process helps stabilize the estimation of nulls between first- and second-order regions, preventing over-smoothing that could distort boundaries or under-smoothing that could introduce jagged edges.

Value

The input SeaSondeRCS object with the smoothed self-spectra stored as an attribute.

See Also

• seasonder_SmoothSS for performing the smoothing operation.

• seasonder_setSeaSondeRCS_FOR_SS_Smoothed for storing the smoothed self-spectra.

• seasonder_getFOR_parameters for retrieving default nsm values.

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