beamform opbeatcube → tableimport fullseye as fs; fs.ledger.beamform_doa(cube, wavelength_m=0.0038934, element_spacing_m=None, angles_deg=None, range_bin=None, doppler_bin=None, n_targets=1, min_fraction=0.1, range_bin_m=None, velocity_bin_ms=None) (実装を直接呼ぶなら import rangedoppler; rangedoppler.beamform_doa(cube, wavelength_m=0.0038934, element_spacing_m=None, angles_deg=None, range_bin=None, doppler_bin=None, n_targets=1, min_fraction=0.1, range_bin_m=None, velocity_bin_ms=None)、台帳から引くなら opsrangedoppler.get("beamform_doa"))Direction(s) of arrival for one range-Doppler cell, in degrees.
:func:beamform_delay_sum followed by strict local-maximum picking on the
angle spectrum: the peaks are sorted by power, filtered at min_fraction of
the strongest, and the top n_targets returned. Two targets closer than the
array’s beamwidth (~0.886*lambda/(N_a*d), reported here as
angular_resolution_deg) merge into one lobe — delay-and-sum cannot
separate them, and this reports one peak rather than pretending otherwise.
When range_bin_m / velocity_bin_ms are supplied (from
:func:fmcw_design) the cell’s range and velocity are converted too, giving
the complete (range, velocity, angle) detection this family exists to
produce; without them those two fields are None rather than a number in
unknown units.
Returns a dict: angles_deg and powers (lists, strongest first),
n_found, grid_deg and spectrum (the full sweep), range_bin /
doppler_bin (the cell used), range_m / velocity_ms,
angular_resolution_deg and max_unambiguous_angle_deg.
Raises ValueError: everything :func:beamform_delay_sum raises, plus
n_targets < 1 or a min_fraction outside [0, 1].
py -3.11 examples/fmcw_range_doppler.pypy -3.11 examples/poc_multibeam_bathymetry.pytable を入力に取れる)—
beamform)Provenance: rangedoppler.py — RANGEDOPPLER operator registry. この per-op ノートは tools/opdocs.py md が自動生成(手編集しない)。
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.