110 lines
5.3 KiB
Python
110 lines
5.3 KiB
Python
from ..message_base import MessageBase
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from ..constants import (
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Subaddress, TargetHistory, AltitudeBlock, FrequencyAgility,
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CursorMode, CursorSnowplough, SAREnable, RadarMode
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)
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from ..fields import BitField, EnumField, ScaledField
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class MsgB6(MessageBase):
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"""
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Message B6: Radar Operational Setting and Parameter Transfer Tell-Back
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ID: B6
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Direction: RT -> BC (Transmit)
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Subaddress: 16
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Rate: 6.25 Hz
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Document Ref: 7.2.6
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Contains:
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- Confirmation of settings (from A1)
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- Radar Health Status / BIT results
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- Software Release Versions
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- Scan Center positions
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- Cursor position feedback
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"""
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SUBADDRESS = Subaddress.TX_SETTING_TB
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IS_TRANSMIT = True
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RATE_HZ = 6.25
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# --- Word 01: Radar Setting Tell-Back (Ref 7.2.6.1) ---
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target_history_tb = EnumField(word_index=0, start_bit=0, width=2, enum_cls=TargetHistory)
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symbol_intensity_tb = BitField(word_index=0, start_bit=2, width=7)
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gnd_tgt_rej_vel_tb = BitField(word_index=0, start_bit=9, width=1)
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min_det_gnd_vel_tb = BitField(word_index=0, start_bit=10, width=1)
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ale_blanking_tb = BitField(word_index=0, start_bit=11, width=1)
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altitude_block_tb = EnumField(word_index=0, start_bit=12, width=2, enum_cls=AltitudeBlock)
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mprf_lookup_tb = BitField(word_index=0, start_bit=14, width=1)
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# --- Word 02: Freq Agility & Interleave Tell-Back (Ref 7.2.6.2) ---
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freq_agility_mode_tb = EnumField(word_index=1, start_bit=0, width=2, enum_cls=FrequencyAgility)
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freq_group_1_tb = BitField(word_index=1, start_bit=2, width=1)
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freq_group_2_tb = BitField(word_index=1, start_bit=3, width=1)
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freq_group_3_tb = BitField(word_index=1, start_bit=4, width=1)
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freq_group_4_tb = BitField(word_index=1, start_bit=5, width=1)
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freq_group_5_tb = BitField(word_index=1, start_bit=6, width=1)
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freq_channel_tb = BitField(word_index=1, start_bit=7, width=6)
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waveform_int_tb = BitField(word_index=1, start_bit=13, width=2)
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lprf_thresh_tb = BitField(word_index=1, start_bit=15, width=1)
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# --- Word 03: Beacon Tell-Back (Ref 7.2.6.3) ---
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beacon_delay_tb = ScaledField(word_index=2, start_bit=0, width=12, lsb_value=0.01)
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beacon_code_tb = BitField(word_index=2, start_bit=12, width=4)
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# --- Word 04: Gains Tell-Back (Ref 7.2.6.4) ---
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if_gain_tb = BitField(word_index=3, start_bit=0, width=7)
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mtg_gain_tb = BitField(word_index=3, start_bit=7, width=7)
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freq_grouping_tb = BitField(word_index=3, start_bit=14, width=1)
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# --- Word 05: Radar Health Status (Ref 7.2.6.5) ---
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radar_failed = BitField(word_index=4, start_bit=0, width=1) # 0=OK, 1=Fail
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array_failed = BitField(word_index=4, start_bit=1, width=1)
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pedestal_failed = BitField(word_index=4, start_bit=2, width=1)
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servoloop_failed = BitField(word_index=4, start_bit=3, width=1)
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rx_frontend_failed = BitField(word_index=4, start_bit=4, width=1)
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receiver_failed = BitField(word_index=4, start_bit=5, width=1)
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transmitter_failed = BitField(word_index=4, start_bit=6, width=1)
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processor_failed = BitField(word_index=4, start_bit=7, width=1)
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tx_overtemp = BitField(word_index=4, start_bit=8, width=1)
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proc_overtemp = BitField(word_index=4, start_bit=9, width=1)
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servo_overtemp = BitField(word_index=4, start_bit=10, width=1)
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pressurization_fail = BitField(word_index=4, start_bit=11, width=1)
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bit_report_available = BitField(word_index=4, start_bit=12, width=1)
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# --- Word 06: SW Release 1 (Ref 7.2.6.6) ---
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main_sw_release = BitField(word_index=5, start_bit=0, width=4)
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main_sw_version = BitField(word_index=5, start_bit=4, width=4)
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graph_sw_release = BitField(word_index=5, start_bit=8, width=4)
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graph_sw_version = BitField(word_index=5, start_bit=12, width=4)
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# --- Word 07: SW Release 2 (Ref 7.2.6.7) ---
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ant_sw_release = BitField(word_index=6, start_bit=0, width=4)
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ant_sw_version = BitField(word_index=6, start_bit=4, width=4)
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# --- Word 08: AZ Scan Center (Ref 7.2.6.8) ---
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# Semicircles, 2's comp
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az_scan_center = ScaledField(word_index=7, start_bit=0, width=16, lsb_value=3.05176e-5, signed=True)
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# --- Word 09: EL Scan Center (Ref 7.2.6.9) ---
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# Semicircles, 2's comp
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el_scan_center = ScaledField(word_index=8, start_bit=0, width=16, lsb_value=3.05176e-5, signed=True)
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# --- Word 10: Clearance Plane Distance TB (Ref 7.2.6.10) ---
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clearance_plane_tb = ScaledField(word_index=9, start_bit=0, width=16, lsb_value=1.0)
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# --- Word 11: Terrain Avoidance Data #1 (Ref 7.2.6.11) ---
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# LSB = 4.68426 meters (approx from PDF logic)
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ta_min_range_protrusion_high = ScaledField(word_index=10, start_bit=0, width=12, lsb_value=4.68426)
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ta_no_signal = BitField(word_index=10, start_bit=12, width=1)
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ta_jammer_in_corridor = BitField(word_index=10, start_bit=13, width=1)
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# --- Word 12: Terrain Avoidance Data #2 (Ref 7.2.6.12) ---
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ta_min_range_protrusion_low = ScaledField(word_index=11, start_bit=0, width=12, lsb_value=4.68426)
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# --- Word 13: Parameter ID TB (Ref 7.2.6.13) ---
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param_transfer_active_tb = BitField(word_index=12, start_bit=0, width=1)
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param_tx_selected_tb = BitField(word_index=12, start_bit=1, width=1)
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param_id_tb = BitField(word_index=12, start_bit=2, width=8)
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# --- Word 14-15: Parameter Value TB (Ref 7.2.6.14) ---
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param_val_1_tb = BitField(word_index=13, start_bit=0, width=16) |