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59 lines
4.4 KiB
Markdown
59 lines
4.4 KiB
Markdown
---
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pageClass: is-wide-page
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---
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# AirspeedValidatedV0 (UORB message)
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**TOPICS:** airspeed_validatedv0
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## Fields
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| Name | Type | Unit [Frame] | Range/Enum | Description |
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| --------------------------------- | --------- | ------------ | ---------- | ------------------------------------------------------------------------------------------------------------------------------------ |
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| timestamp | `uint64` | | | time since system start (microseconds) |
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| indicated_airspeed_m_s | `float32` | | | indicated airspeed in m/s (IAS), set to NAN if invalid |
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| calibrated_airspeed_m_s | `float32` | | | calibrated airspeed in m/s (CAS, accounts for instrumentation errors), set to NAN if invalid |
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| true_airspeed_m_s | `float32` | | | true filtered airspeed in m/s (TAS), set to NAN if invalid |
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| calibrated_ground_minus_wind_m_s | `float32` | | | CAS calculated from groundspeed - windspeed, where windspeed is estimated based on a zero-sideslip assumption, set to NAN if invalid |
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| true_ground_minus_wind_m_s | `float32` | | | TAS calculated from groundspeed - windspeed, where windspeed is estimated based on a zero-sideslip assumption, set to NAN if invalid |
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| airspeed_sensor_measurement_valid | `bool` | | | True if data from at least one airspeed sensor is declared valid. |
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| selected_airspeed_index | `int8` | | | 1-3: airspeed sensor index, 0: groundspeed-windspeed, -1: airspeed invalid |
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| airspeed_derivative_filtered | `float32` | | | filtered indicated airspeed derivative [m/s/s] |
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| throttle_filtered | `float32` | | | filtered fixed-wing throttle [-] |
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| pitch_filtered | `float32` | | | filtered pitch [rad] |
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## Constants
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| Name | Type | Value | Description |
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| ----------------------------------------------- | -------- | ----- | ----------- |
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| <a href="#MESSAGE_VERSION"></a> MESSAGE_VERSION | `uint32` | 0 |
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## Source Message
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[Source file (GitHub)](https://github.com/PX4/PX4-Autopilot/blob/main/msg/px4_msgs_old/msg/AirspeedValidatedV0.msg)
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::: details Click here to see original file
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```c
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uint32 MESSAGE_VERSION = 0
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uint64 timestamp # time since system start (microseconds)
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float32 indicated_airspeed_m_s # indicated airspeed in m/s (IAS), set to NAN if invalid
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float32 calibrated_airspeed_m_s # calibrated airspeed in m/s (CAS, accounts for instrumentation errors), set to NAN if invalid
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float32 true_airspeed_m_s # true filtered airspeed in m/s (TAS), set to NAN if invalid
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float32 calibrated_ground_minus_wind_m_s # CAS calculated from groundspeed - windspeed, where windspeed is estimated based on a zero-sideslip assumption, set to NAN if invalid
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float32 true_ground_minus_wind_m_s # TAS calculated from groundspeed - windspeed, where windspeed is estimated based on a zero-sideslip assumption, set to NAN if invalid
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bool airspeed_sensor_measurement_valid # True if data from at least one airspeed sensor is declared valid.
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int8 selected_airspeed_index # 1-3: airspeed sensor index, 0: groundspeed-windspeed, -1: airspeed invalid
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float32 airspeed_derivative_filtered # filtered indicated airspeed derivative [m/s/s]
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float32 throttle_filtered # filtered fixed-wing throttle [-]
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float32 pitch_filtered # filtered pitch [rad]
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```
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:::
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