beamform op• 数据种类:beatcube → table
• 调用: import 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)(要直接调用实现,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);从台账取用则 opsrangedoppler.get("beamform_doa"))
单个距离-多普勒单元的到达方向 [deg]。
> 以下的详细说明为原文 —— 摘要与标题已翻译。
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 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 beamform_delay_sum raises, plus *n_targets* < 1 or a *min_fraction* outside [0, 1].
• 示例数据目录(下载 URL / 许可证) —— 2-D 用 skimage.data(BSD/公有领域)加合成图,3-D 给出真实数据源(Stanford/PDS 等)的下载 URL。
• 算子来历与参考文献 —— 该算子族所依据的研究/方法出处。
• 算法的正典(作者、年份)与用途见上面的族使用指南。
• fmcw_range_doppler — py -3.11 examples/fmcw_range_doppler.py
• poc_multibeam_bathymetry — py -3.11 examples/poc_multibeam_bathymetry.py
table 作为输入)—
beamform)*Provenance: rangedoppler.py — RANGEDOPPLER 算子登记表。本条目由 tools/opdocs.py md 自动生成(请勿手工编辑)。*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.