NTPS Aeronautical Mobile Telemetry Technology Upgrade. 11-May-2017 Stephanie Luongo, National Test Pilot School Paul Chamberlain, Nginuity

Transcription

1 NTPS Aeronautical Mobile Telemetry Technology Upgrade 11-May-2017 Stephanie Luongo, National Test Pilot School Paul Chamberlain, Nginuity 1

2 Outline Background C/L Band Datalink Upgrades ~ Key Driving Requirements ~ Airborne Components ~ Ground Components ~ Antenna Rotator ~ Ground Testing ~ Flight Test Future Work/Summary 2

3 C and L Band Datalink Upgrades NTPS Airborne Telemetry Background ~ NTPS was granted use of L-Band spectrum on a non-interference basis ~ Use denied due to low priority status ~ Forced to reschedule OFTEN with less than 24 hours notice ~ In order to support additional TM-capability aircraft, 4 C-Band XMTRs were procured in addition to a 2-channel L/C Band Receiver 3

4 Key Driving Requirements 250 kbps PCM/FM (legacy) Interface with IADS Max. range of at least 25 nmi (legacy) Maintain L Band functionality TM reception during unusual attitudes (legacy) Increased bandwidth for future capability 4

5 Aermacchi MB-326M Impala Test Platform ~ 450 KIAS or 0.8 Mach max. airspeed ~ Used at NTPS to demonstrate spins, loads & flutter, and weapons flight testing ~ Fully aerobatic 5

6 System Overview Aircraft 6

7 Airborne Components Sensors Potentiometers Strain Gauges Frequency and Discrete Inputs RS422 Data & CLK RF Splitter Pressure Transducers AHRS Inputs Nginuity Signal Conditioner Quasonix Transmitter Etc. 7

8 DAQ Data Acquisition & Flight Test Instrumentation Multi Function Data Acquisition System Data protocol conversion and data concentrator Digital and Analogue Data acquisition unit for Flight Data Recorders ARINC 573/717 output Remote CSMM Integrated CSMM Internal or external Inertial and Air Data sensors Interchangeable modular functionality Input/Output and Combined I/O Modules Analogue, Potentiometer, Strain Gauge Engine tacho/frequency/discrete Acquisition of aerospace data bus information ARINC 429, MIL-STD-1553B etc. Serial Interfaces RS232/422/485, CAN, Ethernet, USB Telemetry interfaces inc. IRIG 106 for L and C band Integrated GPS for UTC time tagged data Flexible configuration Multi channel mapping 32GB Recording and Real Time replay EASA and Transport Canada STC Approved Extensive DO-160G environmental qualification option 8

9 Data Acquisition System INTERFACE TO AIRCRAFT MOTHERBOARD ETHERNET, 2X CAN & 2X RS-422 COMMUNICATIONS BACKBONE +3.3V, +5V & +/-15V SUPPLIES, GLOBAL TIMING SIGNALS, MASTER RESET, SLOT ID, D38999 SIGNAL ROUTING SLOT 0 CONTROLLER SLOT 1 SLOT 2 SLOT 3 SLOT 4 SLOT 5 CONTROLLER MODULE FUNCTIONAL MODULE FUNCTIONAL MODULE FUNCTIONAL MODULE FUNCTIONAL MODULE FUNCTIONAL MODULE 9

10 DAQ9000 NTPS Chassis Configuration 8/16 channel analogue acquisition, per channel 24 bit ADC, 11 Stage 1000:1 PGA, 1kHz 4/12 channel strain gauge/potentiometer acquisition Identical analogue acquisition Individual 16 bit supplies to 12.5V 40 channel analogue output to +/-12.5V 8 channel current output to 2.5mA 8 Tacho/frequency I/O (input 30mVac to 70Vdc) 10 opto-isolated Discrete I/O Acquisition of aerospace data bus information 4 channel ARINC 429 Rx Serial interfaces 10 off RS232, 5 off RS422, 5 off RS485, 5 off CAN, 2 off Ethernet, 2 off USB GPS, 32GB recording capacity, UDP real time data Telemetry Interfaces PCM 250 KHz (legacy speed for NTPS, 4 MHz supported) UDP 100 Mbps SERIAL, baud (legacy speed for NTPS, 2 Mbaud supported) 10

11 Data Acquisition System NTPS PCM Configuration IRIG PCM Data Stream Separate clock and data Outputs TTL outputs (50 Ώ or 1KΏ option) RS-422 balanced outputs Supporting both the existing L band hardware installation as well as the new C band installation User configurable clock phase User configurable line inversion (separate for clock and data) User configurable bit rate User configurable frame Up to 255 sub frames Up to 255 words per frame 12 or 16 bit word length User defined sync pattern MSB / LSB first Auto-generation of TMATS file 11

12 Data Acquisition System DAQManager - PCM Frame Builder PCM Frame DAQ frame update control PCM frame control parameters Hardware control parameters File control & TMATS export 12

13 Data Acquisition System DAQManager - PCM Parameter Output Mapping Parameters can be added to the frame by simply double clicking on an empty location. Select the required parameter from the drop down list of available state variables Select the parameter interval within the sub frame. A value of 2 will populate every other word; a value of 1 will populate every word etc. Select the parameter sub frame interval. A value of 2 will populate every other sub frame; a value of 1 will populate every sub frame etc. Finally select a colour for the parameter (or group of parameters) from the colour pallet. 13

14 Data Acquisition System DAQManager Calibration Tool Maximising resolution and SNR Configurable input gain stage (per channel) Configurable excitation value Multiple parameter format options Raw ADC counts Scaled integer mode Floating point scaled Engineering Units 14

15 Data Acquisition System DAQManager Calibration Tool Parameter / Channel Name Engineering Units User entry fields for sensor input values User entry fields for corresponding Engineering Unit values Calculated scaling coefficients used by the DAQ9000 in real time. State Variable ID (Slot 3, Channel 9) 15

16 Data Acquisition System DAQ9000 PCM Configuration (TM) DAQManager Frame Builder TMATS File Server RT Station DAQ9000 Configuration RF Link Ethernet PCM Stream DAQManager PCM frame builder automatically downloads the configuration to the DAQ9000 and generates a corresponding TMATS file for the receiver decode. 16

17 Data Acquisition System DAQ9000 UDP Configuration (On-Aircraft) DAQManager UDP Packet Configuration IADS Parameter Definition File (PRN) Server RT Station DAQ9000 Configuration UDP Stream (Fire & Forget) TCP/IP Packets (Handshaking) Real Time IADS Display (On Aircraft) DAQ Data Server (Buffering & Connection Management) 17

18 Data Acquisition System DAQ9000 with Integrated ADAHRS. Pitot / Static sample rates up to 1KHz for rotor pass pressure pulse analysis Real time computation of pressure source errors. (delta from reported A/C source and DAQ9000) AHRS / Air Data module included as a functional module (Slot 5) User defined reference frame rotation 18

19 C-Band Telemetry Transmitter TIMTER model from Quasonix ~ RF Power: 20 Watts ~ MHz ~ VDC ~ Synchronous RS-422 input ~ Serial interface for status & control ~ DC fan for over-temp protection 19

20 C-Band Antennas Blade antennas from Haigh-Farr ~ Linear, vertical polarization ~ Omni-directional ~ Top, bottom mounted 20

21 Ground Components Roof Telemetry Server Room Low Loss Coax X-5000 Receiver IADS Script (Moog Controller) Network Switch LNA MOOG QPT-90 Pan & Tilt Motor Server Control Room Receiver GUI Client Client Client 21

22 High gain dish antenna ~ 2-ft diameter parabolic dish ~ +27 dbi, 7⁰ beamwidth ~ Circularly polarized C-Band Dish Antenna 22

23 Telemetry Receiver X-5000 Series Receiver from Smartronix ~ Two-channel, dual band RF-to-IRIG CH 10 UDP ~ PCM/FM Demodulation, 30 Kbps to 20 Mbps ~ Status and control via GUI Receiver X-5000 GUI 23

24 Antenna Rotator Upgrades New System ~ MOOG QPT-90 Pan and Tilt Motor ~ 360 o Pan Movement w/ 0.01 o pan/tilt tolerance 24

25 Moog GUI IADS Plugin IADS Autotracking Plugin ~ Digital Joystick ~ Move-to commands ~ Firmware settings ~ Latitude, Longitude, Altitude ~ Haversine Formula ~ Commands azimuth and elevation to target 25

26 Antenna Rotator Upgrades 26

27 Ground Systems I&T Ground Testing ~ Ground Component Checkouts ~ Boresight Calibration Aircraft Systems I&T ~ Instrumentation Functional Checkouts ~ EMI/EMC Testing 27

28 Ground Testing Results 28

29 Functional Flight Testing Flight Testing ~ Basic RF, Rotator/Auto Tracker Performance ~ Calibrations and IADS Displays Verification System Characterization Flight Testing ~ Latency ~ RF performance during maneuvering attitudes ~ Maximum Range Testing 29

30 Results Basic RF, Rotator/Auto Tracker Performance Calibrations and IADS Displays Verification 30

31 Results Latency End-to-end ~ Event marker parameter (sampled at ~22 msec) ~ 100 msec IADS ~ TOTAL TIME: 1.01 seconds 31

32 Results RF Performance Maneuvering Attitudes 32

33 Results RF Performance Aspect Testing 33

34 Results RF Performance Max. Range 34

35 Future Work Max Range w/o airspace restriction Datalink performance during spins sorties Maximum range at maximum bandwidth Cockpit Audio in PCM Stream 35

36 Summary The NTPS technology upgrade has: ~ Provided the school an alternative to L-Band telemetry ~ Improved aircraft tracking performance by using a more capable rotator ~ Modernized NTPS instrumentation data acquisition and signal conditioning room to grow 36

37 Questions? 37