High-resolution spread spectrum channel sounder for wireless communications systems

• Published in: 1999 IEEE International Conference on Personal Wireless Communications (Cat. No.99TH8366) pp. 170 - 173
• Main Authors: Haese, S., Moullec, C., Coston, P., Sayegrih, K.
• Format: Conference Proceeding
• Language: English
• Published: Piscataway NJ IEEE 1999
• Subjects: Acoustic noise; Applied sciences; Autocorrelation; Correlators; Delay estimation; Exact sciences and technology; Frequency estimation; Hardware; Performance evaluation; Semiconductor device measurement; Spread spectrum communication; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Transmission and modulation (techniques and equipments); Wireless communication
• ISBN: 9780780349124; 0780349121
• DOI: 10.1109/ICPWC.1999.759609

This paper presents a new commercial wide-band channel sounder (SARACOM). This instrument measures the complex envelope of the channel impulse response by the use of a sliding correlator. The principles and benefits of this technique are briefly reviewed. The hardware architecture of the system is explained. The choice of key parameters such as chip rate, pseudonoise sequence length versus sounder performance are discussed and verified by laboratory tests. Measurement results in the 2.45 GHz band in a large indoor environment are then presented in order to demonstrate the performance of the equipment in a realistic situation. The capabilities of the post-processing software are then illustrated.