Laboratory Stands for Wideband Analysis Radiocommunication Signals

Abstract

A laboratory stand for wideband analysis radiocommunication signals is presented in the paper. The stand is designed for signals acquisition in wide spectrum and research a field of digital signal processing. Procedures used for simultaneous acquiring many frequency channels in selected wide band are described. The method of detection of direct sequence spread spectrum signals (DS SS) which power spectral density is lower than noise is also discussed. Executed research were performed with signals locally generated and with signals from real radio communication systems

Keywords

• signal processing, wideband signals, data acquisition

References

1. Pereira J. M. (2001): Reconfigurable Radio: the evolving perspectives of different players. Personal, Indoor and Mobile Radio Communications, 2001 12th IEEE International Symposium, pp. C-79 – C-84 vol. 1.
2. Faxin Yu, Xiaojun Jin, Zhaoging Liu (2006): Parallel Processing Design of Multi-channel LIF Digital Receiver. Radar, 2006. CIE'06. International Conference, pp. 1-4.
3. Was R., Katulski R. J., Stefanski J., Studanski R. (2008): DS CDMA radio transmissions detection.¸ IEEE Conference on Technologies for Homeland Security, Boston, MA. 2008, pp.34-40.
4. Katulski R., Studanska A., Stefanski J., Studanski R., Was R. (2008): Influence of Narrowband Interferences on DS CDMA Signals Detection. Proceedings of the 18th International Conference, Electromagnetic Disturbance EMD’2008”, pp. 57-62.
5. Studanski R., Was R., Studanska A., (2011): Detection of the Direct Sequence Spread Spectrum Signals with BPSK Modulation. Polish Journal of Environmental Studies, Olsztyn Vol. 20; No 5A; pp. 148-151.