03147nas|a2200445 i 4500 20260818144349.0 121095s1994 th uu m rtt 00| a1eng d .b10380358 AIT RSPR no. TC-94-13 Guirnela, Maria Carmela P. An investigation of the performance of a DS-SSMA system with windowing Bangkok : Asian Institute of Technology, 1994 53 leaves Research studies project report ; no. TC-94-13 A research submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology Research Studies Project Report (M.Eng.) - Asian Institute of Technology, 1994 A DS-SSMA system model which applied windowing functions at the transmitter and at the correlator receiver is presented. Two windowing schemes are considered in this study -- the data bit windowing and the chip windowing. An analytical expression for the signal-to-noise interference-ratio (SNR) is developed for both schemes to determine the system performance using various windows. Effects on the correlation of pseudo-noise (PN) sequences are investigated and numerical results are presented. It is shown that both schemes result in an improved lower crosscorrelation values but an unsatisfactorily reduced peak in the autocorrelation function. Based on these resulting characteristics, the system performance is degraded with the use of windowing functions and that the rectangular window, equivalent to no windowing applied, is still unequaled. Spread spectrum communications O'Farrell, T., Chairperson (Chairman - upto 31/10/94) Ahmed, Kumar M., Chairperson (Chairman - from 01/11/94) Makeliiinen, Kimmo, Examination committee Sharma, A.B., Examination Committee Finnish International Development Agency (FINNIDA), Scholarship donor Asian Institute of Technology. Research studies project report ; no. TC-94-13 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B15583 .b10380358 mnait y 240430 2 951012 m a y 3 mnait mnait mnarc mnarc 20 40 Barcode : 30050003116786 CREATED : 1994-05-17 RECORD # : i10475576 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 1 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050003116794 CREATED : 1994-05-17 RECORD # : i10475588 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 1 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120370258 CREATED : 2016-03-06 RECORD # : i13016234 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050211022057 CREATED : 2022-02-15 RECORD # : i1336621x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 64834 64834 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT RSPR no. TC-94-13 30050003116786 2026-08-18 14:43:49 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT RSPR no. TC-94-13 30050003116794 2026-08-18 14:43:49 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT RSPR no. TC-94-13 30050120370258 2026-08-18 14:43:49 1 2026-08-18 40 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT RSPR no. TC-94-13 30050211022057 2026-08-18 14:43:49 3 2026-08-18 20