Receiving ADS-B signals in Space - CEC / CCIC

1. Objective

2

1. Objective

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1. Objective

Ground Station

ADS-B

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ADS-B

1. Objective

1. In orbit demonstration of ADS-B

detection

1. Characterize “Cone of Silence”

(when aircraft are at the nadir);

1. Receiver figures of merit:

•“Probability of Target Acquisition”

•“Probability of Detection”

•“Probability of Identification”

Ground Station

ADS-B

ADS-B

UHF Downlink

“Store and forward” approach

Movement direction

6

2. Cubesat

7

8

9

Status

● RF: preliminary design and component selection

completed

● Baseband: Initial simulation of algorithms on FPGA

● Testing: HAB campaign performed to collect ADS-B

baseband data @ 30 km to be use for fine tuning

algorithms

Decoded

messages

RF Front Ent

ADC FPGA

ADS-B RECEIVER

2. Payload

Future

● ADS-B receiver tuning, production and testing in HAB

Status

● Rectangular patch preliminary simulation and

prototype

Future

● Antenna design refinement, simulation,

fabrication and testing

● Anechoic measurement, Characterization of

interference

● Integration

ADS-B ANTENNA

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2. Subsystems

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2. Timeline

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3. High Altitude Balloon

Testing

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Possibilities:● Test range of ADS-B Receiver.

● Test Communication links.

● Test electronic in near-space conditions of temperature,

pressure and radiation.

3. High Altitude Balloon

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3. High Altitude Balloon

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3. High Altitude Balloon

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3. High Altitude Balloon

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3. High Altitude Balloon

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3. High Altitude Balloon

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4. Sponsoring Opportunities

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4. Sponsors Wanted!

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Thank you

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