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Rapid, automated, test, verification and validation for the CubeSats (2019)
Journal Article
Zaidi, Y., Fitz-Coy, N. G., & Van Zyl, R. (2019). Rapid, automated, test, verification and validation for the CubeSats. International Journal of Space Science and Engineering, 5(3), 242-268. https://doi.org/10.1504/IJSPACESE.2019.101412

Bringing up of a small-scale mission assurance and engineering workflow is described. The experiences learned in the ZACUBE-1 mission prompted the development of an automated systems engineering platform leading to conformity in system design, test,... Read More about Rapid, automated, test, verification and validation for the CubeSats.

Indoor positioning using auto sextant (2019)
Conference Proceeding
Zar, A., Zaidi, Y., & Winberg, S. (2019). Indoor positioning using auto sextant. https://doi.org/10.1109/ICMIMT.2019.8712019

© 2019 IEEE. This paper reports on the construction of an automated mechatronic sextant utilized in determining positions relative to multiple observed objects in open spaces. The design is based on the basic principles of the conventional mariner's... Read More about Indoor positioning using auto sextant.

A GMSK VHF-uplink/UHF-downlink transceiver for the CubeSat missions: Thermo-functional performance (2018)
Journal Article
Zaidi, Y., van Zyl, R. R., & Fitz-Coy, N. G. (2018). A GMSK VHF-uplink/UHF-downlink transceiver for the CubeSat missions: Thermo-functional performance. CEAS Space Journal, 10(3), 453-467. https://doi.org/10.1007/s12567-018-0217-5

© 2018, CEAS. Functional and thermal performance characteristics of a very high frequency/ultra high frequency (VHF/UHF) transceiver based on Gaussian minimum shift keying (GMSK) modulation are presented. The transceiver has been designed for CubeSat... Read More about A GMSK VHF-uplink/UHF-downlink transceiver for the CubeSat missions: Thermo-functional performance.

Functional/thermal verification and validation of an S-band radio for the nanosatellites (2018)
Journal Article
Zaidi, Y., Fitz-Coy, N. G., & van Zyl, R. (2018). Functional/thermal verification and validation of an S-band radio for the nanosatellites. Advances in Space Research, 62(12), 3405-3422. https://doi.org/10.1016/j.asr.2018.04.015

© 2018 COSPAR An S-band radio designed with commercial-grade components for the nanosatellites is functionally and thermally characterized for quiet transmission. The QPSK modulation impairments are minor over −20 °C to +50 °C at 24, 26, 28 and 30 dB... Read More about Functional/thermal verification and validation of an S-band radio for the nanosatellites.

A low cost testbed and test-design methodology for nanosatellite sub-/systems (2017)
Conference Proceeding
Zaidi, Y., & Van Zyl, R. (2017). A low cost testbed and test-design methodology for nanosatellite sub-/systems. https://doi.org/10.1109/AFRCON.2017.8095518

© 2017 IEEE. The architecture of a software-driven testbed is discussed. The test setup has been developed as measurement and instrumentation system to functionally verify and thermally validate the communication subsystems designed and manufactured... Read More about A low cost testbed and test-design methodology for nanosatellite sub-/systems.

Rapid, automated test, verification and validation for CubeSats (2016)
Presentation / Conference
Zaidi, Y., Fitz-Coy, N. G., & van Zyl, R. (2016, September). Rapid, automated test, verification and validation for CubeSats. Paper presented at 67th International Astronautical Congress (IAC)

From the experiences learned in the ZA-CUBE-1 mission, bringing up of a small-scale mission assurance facility is reported. The first of a series of actions envisaged to accomplish the facility is achieving functional test and verification, and the s... Read More about Rapid, automated test, verification and validation for CubeSats.

On mixed abstraction, languages and simulation approach to refinement with SystemC AMS (2010)
Journal Article
Zaidi, Y., Grimm, C., & Haase, J. (in press). On mixed abstraction, languages and simulation approach to refinement with SystemC AMS

Executable specifications and simulations are cornerstone to system design flows. Complex mixed signal embedded systems can be specified with SystemC AMS which supports abstraction and extensible models of computation. The language contains semant... Read More about On mixed abstraction, languages and simulation approach to refinement with SystemC AMS.


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