File size: 2,857 Bytes
50464c0 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 | {
"axes": {
"core": {
"a_imag": "paths",
"a_real": "paths",
"interaction_count": "paths",
"interaction_flags": "paths",
"link_path_offsets": "links+1",
"link_ue_index": "links",
"path_rank": "paths",
"phi_r": "paths",
"phi_t": "paths",
"tau": "paths",
"theta_r": "paths",
"theta_t": "paths"
},
"detail": {
"interaction_rank": "interactions",
"interaction_type": "interactions",
"interaction_vertex": "interactions,3",
"path_interaction_offsets": "paths+1"
},
"positions": {
"bs_positions": "bs,3",
"ue_positions": "ues,3"
}
},
"capabilities": {
"retained_empty_links": true
},
"fields": {
"core": {
"a_imag": "<f4",
"a_real": "<f4",
"interaction_count": "|u1",
"interaction_flags": "<u2",
"link_path_offsets": "<i8",
"link_ue_index": "<i4",
"path_rank": "|u1",
"phi_r": "<f4",
"phi_t": "<f4",
"tau": "<f4",
"theta_r": "<f4",
"theta_t": "<f4"
},
"detail": {
"interaction_rank": "|u1",
"interaction_type": "|i1",
"interaction_vertex": "<f4",
"path_interaction_offsets": "<i8"
},
"positions": {
"bs_positions": "<f4",
"ue_positions": "<f4"
}
},
"layout": {
"alignment": {
"counts": "interaction_count[j] = path_interaction_offsets[j+1] - path_interaction_offsets[j]",
"interactions": "interaction_rank, interaction_type, interaction_vertex share interaction index k",
"links": "link_ue_index and link_path_offsets[:-1] share link index i",
"paths": "core arrays on axis paths share path index j; detail path j is core path j of the record with the same scene_id, frequency_hz and bs_index (equal path_axis_sha256)"
},
"index_base": 0,
"link_path_offsets": "paths of link i",
"offsets": "X_offsets[i]:X_offsets[i+1] (half-open) is the span of element i; X_offsets[0] = 0, X_offsets[-1] = length of the spanned axis, non-decreasing",
"path_interaction_offsets": "interactions of path j",
"references": {
"bs_index": "row of bs_positions in the scene positions record",
"interaction_type": "code in schema/interaction-codes.json",
"link_ue_index": "row of ue_positions in the scene positions record"
},
"vectors": "last axis is (x, y, z) in the scene frame"
},
"metadata_key": "__meta__",
"metadata_schema": "wireless.npz-meta",
"metadata_version": 2,
"path_axis_sha256": "path-axis-v1 (wireless_env_data.codecs.path_axis)",
"schema": "wireless.arrays",
"units": {
"a_imag": "1",
"a_real": "1",
"bs_positions": "m",
"interaction_vertex": "m",
"phi_r": "rad",
"phi_t": "rad",
"tau": "s",
"theta_r": "rad",
"theta_t": "rad",
"ue_positions": "m"
}
}
|