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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Quirk, M. Bede Liu |
| Copyright Year | 1981 |
| Description | Author affiliation: Princeton University, Princeton, N.J (Quirk, M.) |
| Abstract | The frequency spectrum of a long dsta sequence over a narrow band can be efficiently computed by decimating the sequence using FIR filters, and calculating an FFT on the shortened output. This method offers a low computation rate, a small storage requirement, good frequency resolution, and adjustable accuracy [1]. The number of computations can be decreased for the lowpass case by relaxing the filter constraints [2]. This lowers the order of the filter necessary to attain a given level of accuracy. This paper extends the procedure proposed in [2] to bandpass filters. An algorithm is developed for choosing the best decimation rates and designing appropriate decimating filters for any chosen frequency band. The algorithm is used to derive tables of optimum decimation rates for a range of band positions and widths. The results demonstrate that direct decimation with a minimal passband constraint can improve on the results of [1]. |
| Starting Page | 85 |
| Ending Page | 88 |
| File Size | 110975 |
| Page Count | 4 |
| File Format | |
| DOI | 10.1109/ICASSP.1981.1171316 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1981-03-30 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Narrowband Frequency Finite impulse response filter Band pass filters Passband Sampling methods Signal processing algorithms Algorithm design and analysis Signal processing Spectral analysis |
| Content Type | Text |
| Resource Type | Article |
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