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0019.954366
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008250821e199611  oncad   obt  f000|0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
041 |aeng|beng|bfre
043 |an-cn---
0861 |aDR52-17/80-1996E-PDF
1001 |aTom, Caroline,|d1967- |eauthor.
24510|aMultichannel M-ARY frequency-shift-keying block demodulator implementation (U) / |cby Caroline Tom and Zaiqing Meng.
264 1|aOttawa : |bDefence Research Establishment Ottawa, |cNovember 1996.
300 |a1 online resource (1 volume (various pagings)) : |billustrations, charts.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aDREO report ; |vno. 1307
500 |aDigitized edition from print [produced by Defence Research and Development Canada].
500 |a"Project 5CA11."
504 |aIncludes bibliographical references (page 38).
520 |a"The Military Satellite Communications (MILSATCOM) group at Defence Research Establishment Ottawa (DREO) is performing in-house satellite communications uplink synchronization experiments. A critical part of the experiment is the block demodulation of the multi-channel frequency-hopped waveform. This report analyses the Fast Fourier Transform (FFT)-based demodulator implemented by Royal Military College (RMC) Kingston. This system is capable of demodulating a 32-channel, 8-ary frequency-shift-keying (FSK) waveform. The implementation consists of analog-to-digital (A/D) conversion, FFT computation, and high-speed input/output (I/O) interface processes using commercial off-the-shelf boards. A description of each of the boards is presented. The operational data flow of the system is examined. For the software implementation, a decimation-in-time approach is used in the digital signal processing (DSP) board to compute the discrete Fourier transform (DFT). A brief description of decimation-in-time algorithms is included. Key components of the assembly language program are outlined. A user’s guide detailing the setup requirements for proper operation of the system is included with those required for the DREO application. Steps required for modification to the software are briefly discussed"--Abstract, page iii.
546 |aIncludes abstracts in English and French.
650 0|aRadio frequency modulation|xTesting.
650 0|aDemodulation (Electronics)
650 6|aModulation de fréquence|xTests.
650 6|aDémodulation (Électronique)
7102 |aDefence Research Establishment Ottawa, |eissuing body.
830#0|aDREO report ;|vno. 1307.|w(CaOODSP)9.941661
85640|qPDF|s2.82 MB|uhttps://publications.gc.ca/collections/collection_2025/rddc-drdc/DR52-17-80-1996-eng.pdf
986 |aProject 5CA11