Automated avionics testing
First Claim
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1. A software defined radio (SDR) system to remotely analyze avionics, the system comprising:
- transmitter circuitry configured to illuminate the avionics with intentional radio frequency (RF) energy to produce forced non-linear emissions that radiate from the avionics as an RF energy response;
receiver circuitry configured to receive the RF energy response and generate a received RF energy representation;
correlation and analysis circuitry to correlate the received RF energy representation with a baseline response representative of known good avionics and output an avionics status; and
a baseline database coupled to the correlation and analysis circuitry, the baseline database comprising (a) a plurality of cockpit profiles and their respective, associated known good RF energy representations, (b) an avionics powered on or powered off state indication and a software version indication of avionics software stored with each associated known good RF energy representation, and (c) the baseline response.
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Abstract
An SDR system and method that intentionally illuminates aircraft systems with RF energy having specific characteristics (e.g., frequency, power, waveform, directionality, duration, etc.) are provided. The aircraft systems act as non-linear mixers and emit non-linear RF energy. A receiver receives the RF energy response and generates an RF energy representation that is correlated to a database of baseline responses. A correlation response between the received RF energy representation and any one of the baseline responses from the database provides an indication of the aircraft system status.
20 Citations
16 Claims
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1. A software defined radio (SDR) system to remotely analyze avionics, the system comprising:
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transmitter circuitry configured to illuminate the avionics with intentional radio frequency (RF) energy to produce forced non-linear emissions that radiate from the avionics as an RF energy response; receiver circuitry configured to receive the RF energy response and generate a received RF energy representation; correlation and analysis circuitry to correlate the received RF energy representation with a baseline response representative of known good avionics and output an avionics status; and a baseline database coupled to the correlation and analysis circuitry, the baseline database comprising (a) a plurality of cockpit profiles and their respective, associated known good RF energy representations, (b) an avionics powered on or powered off state indication and a software version indication of avionics software stored with each associated known good RF energy representation, and (c) the baseline response. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for remotely determining avionics status, the method comprising:
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illuminating the avionics with intentional radio frequency (RF) energy from transmitter circuitry that outputs configured electromagnetic energy to produce forced non-linear emissions that radiate from the target device as an RF energy response; receiving the RF energy response using receiver circuitry; converting the RF energy response to a received RF energy representation; accessing a database storing (a) a plurality of baseline responses, (b) a plurality of cockpit profiles and their respective, associated known good RF energy representations, (c) an avionics powered on or powered off state indication and (d) a software version indication of avionics software stored with each associated known good RF energy representation; correlating the received RF energy representation with the plurality of baseline responses; and outputting the avionics status in response to the correlation of the received RF energy representation with the plurality of baseline responses. - View Dependent Claims (9, 10, 11)
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12. A non-transitory computer-readable storage medium that stores instructions for execution by control circuitry of a software defined radio (SDR), the instructions cause the control circuitry to:
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illuminate avionics using transmitter circuitry that outputs intentional radio frequency (RF) energy to produce forced non-linear emissions that radiate from the avionics as an RF energy response; receive the RF energy response using receiver circuitry; convert the RF energy response to a received RF energy representation; access a database of baseline responses to correlate the received RF energy representation with the database of baseline responses, the database further includes (a) a plurality of cockpit profiles and their respective, associated known good RF energy representations, (b) an avionics powered on or powered off state indication and (c) a software version indication of avionics software stored with each associated known good RF energy representation; and determine a status of the avionics based on the correlation of the received RF energy representation and the database of baseline responses. - View Dependent Claims (13, 14, 15, 16)
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Specification