Add geometric Doppler Centroid estimation and RMS

Author: alexamici

pyproject.toml

@@ -3,7 +3,7 @@ build-backend = "setuptools.build_meta"
 requires = ["setuptools>=64", "setuptools_scm>=8"]
 
 [project]
-authors = [{ "name" = "B-Open", "email" = "[email protected]" }]
+authors = [{"name" = "B-Open", "email" = "[email protected]"}]
 classifiers = [
   "Development Status :: 4 - Beta",
   "Intended Audience :: Science/Research",
@@ -14,15 +14,15 @@ classifiers = [
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
-  "Topic :: Scientific/Engineering",
+  "Topic :: Scientific/Engineering"
 ]
 dependencies = [
   "fsspec",
   "numpy",
   "pandas",
   "rioxarray",
   "xarray >= 0.18.0",
-  "xmlschema",
+  "xmlschema"
 ]
 description = "Easily access and explore the SAR data products of the Copernicus Sentinel-1 satellite mission"
 dynamic = ["version"]
@@ -35,9 +35,9 @@ keywords = [
   "sentinel-1",
   "sar",
   "synthetic-aperture-radar",
-  "xarray",
+  "xarray"
 ]
-license = { file = "LICENSE" }
+license = {file = "LICENSE"}
 name = "xarray-sentinel"
 readme = "README.md"
 requires-python = ">=3.9"
@@ -63,7 +63,7 @@ module = [
   "rasterio",
   "shapely",
   "shapely.geometry",
-  "shapely.wkt",
+  "shapely.wkt"
 ]
 
 [tool.ruff]
@@ -74,7 +74,7 @@ line-length = 88
 [tool.ruff.lint]
 ignore = [
   # pydocstyle: Missing Docstrings
-  "D1",
+  "D1"
 ]
 select = [
   # pyflakes
@@ -85,7 +85,7 @@ select = [
   # isort
   "I",
   # pydocstyle
-  "D",
+  "D"
 ]
 
 [tool.ruff.lint.pycodestyle]

xarray_sentinel/sentinel1.py

@@ -415,7 +415,21 @@ def open_dc_estimate_dataset(
     azimuth_time = []
     t0 = []
     data_dc_poly = []
+    geometry_dc_poly = []
+    data_dc_rms_error = []
+    data_dc_rms_error_above_threshold = []
+    fine_dce_azimuth_start_time = []
+    fine_dce_azimuth_stop_time = []
     for dc_estimate in dc_estimates:
+        geometry_dc_poly.append(
+            [float(c) for c in dc_estimate["geometryDcPolynomial"]["$"].split()]
+        )
+        data_dc_rms_error.append(dc_estimate["dataDcRmsError"])
+        data_dc_rms_error_above_threshold.append(
+            dc_estimate["dataDcRmsErrorAboveThreshold"]
+        )
+        fine_dce_azimuth_start_time.append(dc_estimate["fineDceAzimuthStartTime"])
+        fine_dce_azimuth_stop_time.append(dc_estimate["fineDceAzimuthStopTime"])
         azimuth_time.append(dc_estimate["azimuthTime"])
         t0.append(dc_estimate["t0"])
         data_dc_poly.append(
@@ -426,6 +440,25 @@ def open_dc_estimate_dataset(
         data_vars={
             "t0": ("azimuth_time", t0, attrs),
             "data_dc_polynomial": (("azimuth_time", "degree"), data_dc_poly, attrs),
+            "geometry_dc_polynomial": (
+                ("azimuth_time", "degree"),
+                geometry_dc_poly,
+                attrs,
+            ),
+            "data_dc_rms_error": ("azimuth_time", data_dc_rms_error, attrs),
+            "data_dc_rms_error_above_threshold": (
+                "azimuth_time",
+                data_dc_rms_error,
+                attrs,
+            ),
+            "fine_dce_azimuth_start_time": (
+                "azimuth_time",
+                [np.datetime64(at, "ns") for at in fine_dce_azimuth_start_time],
+            ),
+            "fine_dce_azimuth_stop_time": (
+                "azimuth_time",
+                [np.datetime64(at, "ns") for at in fine_dce_azimuth_stop_time],
+            ),
         },
         coords={
             "azimuth_time": [np.datetime64(at, "ns") for at in azimuth_time],