PHASE FREQUENCY INTERPRETATION OF THE COINCIDENCE METHOD FOR FREQUENCY TO CODE CONVERSION
DOI:
https://doi.org/10.15588/1607-3274-2023-2-1Keywords:
frequency, coincidence, electronic counter frequency meter, full phase shift, phase cycle, industrial tomography, radar, internet of things, unmanned aerial vehicle, complex programmable logic device.Abstract
Context. The problem of fast conversion of radio signal frequency for monitoring the radial velocity of a moving object. The object of the study was the process of converting frequency into a code based on the coincidence method.
Objective. The goal of the work is to improve the coincidence method for creating a new signal-to-code frequency converter without fixing the conversion time interval.
Method. The coincidence method for converting the signal frequency into a code has been improved. The improved frequency conversion method, unlike the existing ones, consists in counting the number of complete phase cycles of the known and unknown signals during the time of double coincidence and asynchronous mode of hardware determination of the particle. The improved method has advantages in comparison with the method of an electro-counter frequency meter when determining the radial speed of objects and does not have a methodical error, which in an electro-counter frequency meter increases as the unknown frequency approaches the reference to 100%. However, the improved coincidence method compared to other versions has a hardware scheme for tracking the moments of coincidence and determining the fraction and does not require expensive and high-speed microprocessors to calculate the conversion results.
Results. Based on the phase-frequency interpretation and the derived conversion equation and the proposed frequency-to-code conversion scheme using the coincidence method, a functional scheme of the frequency converter was developed. This made it possible to implement a 16-bit frequency converter in code on Intel’s MAX V series CPLD.
Conclusions. The coincidence method for converting the signal frequency into a code received further development, which, unlike the existing ones, consists in counting the number of complete phase cycles of the known and unknown signals during the time of double coincidence and the asynchronous mode of hardware determination of the fraction.
The influence of the frequency of signals on the time of a single measurement was studied using the coincidence method, as a result of which it was found that with an increase in the difference between the reference and unknown frequency, the time of a single measurement decreases.
The obtained research results can be used for the development of high-speed means of converting the signal frequency into a binary code: in industrial tomography, radar and radio navigation for monitoring moving objects.
References
Astola J. T., Egiazarian K. O., Khlopov G. I. et al. Application of Bispectrum Estimation for Time-Frequency Analysis of Ground Surveillance Doppler Radar Echo Signals [Electronic resource, IEEE Transactions on Instrumentation and Measurement, 2008, Vol. 57, No. 9, pp. 1949–1957. Access mode: https://doi.org/10.1109/tim.2008.917192
Banzhaf S., Waldschmidt Ch. Phase-Code-Based Modulation for Coherent Lidar [Electronic resource], IEEE Transactions on Vehicular Technology, 2021, P. 1. Access mode: https://doi.org/10.1109/tvt.2021.3104109
Boff A. F. The Application of Counter Techniques to Precision Frequency Measurements [Electronic resource], Transactions of the IRE Professional Group on Instrumentation. – 1954, PGI-3, pp. 2–10. Access mode: https://doi.org/10.1109/irepg-i.1954.5007346
Du B., Dong Sh., Wang Y. et al. High-resolution frequency measurement method with a wide-frequency range based on a quantized phase step law [Electronic resource], IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2013, Vol. 60, No. 11, pp. 2237–2243. Access mode: https://doi.org/10.1109/tuffc.2013.6644729
Kaszerman P. Frequency of Pulse Coincidence Given n Radars of Different Pulse Widths and PRF’s [Electronic resource], IEEE Transactions on Aerospace and Electronic Systems, 1971, AES-7, No. 5, pp. 1013–1014. Access mode: https://doi.org/10.1109/taes.1971.310349
Koulountzios P. Rymarczyk T., Soleimani M. A TripleModality Ultrasound Computed Tomography Based on FullWaveform Data for Industrial Processes [Electronic resource], IEEE Sensors Journal, 2021, Vol. 21, No. 18, pp. 20896–20909. Access mode: https://doi.org/10.1109/jsen.2021.3100391
MAX V Device Family Data Sheet [Electronic resource], Intel. Access mode: https://www.intel.com/content/dam/www/programma ble/us/en/pdfs/literature/hb/max-v/mv51001.pdf
Gula I. V., Polikarovskykh O. I., Horiashchenko K. I. et al. Measurements of Periodic Signals Phase Shifts with Application of Direct Digital Synthesis [Electronic resource], Devices and Methods of Measurements, 2019, Vol. 10, No. 2, pp. 169–177. Access mode: https://doi.org/10.21122/22209506-2019-10-2-169-177
Hu J., Zhang H., Di B. et al. Meta-material Sensor Based Internet of Things: Design, Optimization, and Implementation [Electronic resource], IEEE Transactions on Communications, 2022, P. 1. Access mode: https://doi.org/10.1109/tcomm.2022.3187150
Petrushak V. S. Measurement of the amplitude of periodic signals using the fibonacci method [Electronic resource], Devices and Methods of Measurements, 2018, Vol. 9, No. 2. pp. 167–172. Access mode: https://doi.org/10.21122/22209506-2018-9-2-167-172
Roehr S., Gulden P., Vossiek M. Precise Distance and Velocity Measurement for Real Time Locating in Multipath Environments Using a Frequency-Modulated ContinuousWave Secondary Radar Approach [Electronic resource], IEEE Transactions on Microwave Theory and Techniques. – 2008, Vol. 56, No. 10, pp. 2329–2339. Access mode: https://doi.org/10.1109/tmtt.2008.2003137
Susaki H. A fast algorithm for high-accuracy frequency measurement: application to ultrasonic Doppler sonar [Electronic resource], IEEE Journal of Oceanic Engineering, 2002, Vol. 27, No. 1, pp. 5–12. Access mode: https://doi.org/10.1109/48.989878
Zhang M., Wang H. // Precise Frequency Comparison System Using Phase Coincidence Demarcation [Electronic resource], IEEE Transactions on Instrumentation and Measurement, 2020, Vol. 69, No. 2, pp. 617–622. Access mode: https://doi.org/10.1109/tim.2019.2904130
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