51 lines
1.3 KiB
Python
51 lines
1.3 KiB
Python
import math
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# --- General Constants ---
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PI = math.pi
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# --- Angle Conversion (ICD 1553 Semicircles) ---
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SEMICIRCLE_LSB = 3.05176E-05
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SEMICIRCLE_RAD_LSB = SEMICIRCLE_LSB * PI
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GEOPOS_SC_LSB = 4.65661E-10
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GEOPOS_RAD_LSB = GEOPOS_SC_LSB * PI
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ATTITUDE_RATE_SC_LSB = 1.22070E-04
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ATTITUDE_RATE_RAD_LSB = ATTITUDE_RATE_SC_LSB * PI
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WAYPOINT_LATLON_LSB = 5.96046E-08 * PI
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RAD_TO_DEG = 180.0 / PI
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DEG_TO_RAD = PI / 180.0
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# --- Distance and Speed ---
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NM_TO_METERS = 1852.0
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METERS_TO_FEET = 3.280839895
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FEET_TO_METERS = 1.0 / METERS_TO_FEET
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MS_TO_KNOTS = 3600.0 / NM_TO_METERS
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KNOTS_TO_MS = 1.0 / MS_TO_KNOTS
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TAS_KNOTS_LSB = 0.125
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TAS_MS_LSB = TAS_KNOTS_LSB * KNOTS_TO_MS
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CAS_KNOTS_LSB = 1.0
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CAS_MS_LSB = CAS_KNOTS_LSB * KNOTS_TO_MS
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# --- Altitude and Physics ---
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RADIO_ALT_FEET_LSB = 2.0
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RADIO_ALT_METERS_LSB = RADIO_ALT_FEET_LSB * FEET_TO_METERS
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BARO_ALT_FEET_LSB = 4.0
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BARO_ALT_METERS_LSB = BARO_ALT_FEET_LSB * FEET_TO_METERS
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SPOI_ALT_FEET_LSB = 1.0
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SPOI_ALT_METERS_LSB = SPOI_ALT_FEET_LSB * FEET_TO_METERS
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VELOCITY_FEET_LSB = 3.81470E-06
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VELOCITY_METERS_LSB = VELOCITY_FEET_LSB * FEET_TO_METERS
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ACCELERATION_FEET_LSB = 0.03125
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ACCELERATION_METERS_LSB = ACCELERATION_FEET_LSB * FEET_TO_METERS
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CRS_SLAVE_RNG_METERS_LSB = 8.0 * FEET_TO_METERS
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# --- Time ---
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TIMETAG_MICROSECONDS_LSB = 64 |