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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Engelberg, S. |
| Copyright Year | 2004 |
| Description | Author affiliation: Electron. Dept., Jerusalem Coll. of Technol., Israel (Engelberg, S.) |
| Abstract | The result of connecting many low-pass filters in series is considered. It is shown that if the impulse response of the filters is non-negative, then a version of the central limit theorem applies. Making use of the central limit theorem, we show that, as the number of filter sections gets large, the total delay of the cascaded filter system tends to the sum of the (approximate) time delays of each of the filters. Letting B/sub i/ denote the (approximate) bandwidth of the i/sup th/ filter, it is found that the bandwidth of the cascaded filter system tends to 1//spl radic/(1/B/sub 1//sup 2/ + /spl middot//spl middot//spl middot/ + 1/B/sub N//sup 2/). Using examples, it is shown that the rate at which the impulse response converges to a Gaussian is dependent on the nature of the impulse responses of the constituent low-pass filters. |
| Starting Page | 65 |
| Ending Page | 68 |
| File Size | 550216 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780387155 |
| DOI | 10.1109/ICECS.2004.1399615 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2004-12-15 |
| Publisher Place | Israel |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Low pass filters Random variables Delay effects Bandwidth Educational institutions Joining processes Probability distribution Gaussian distribution Transfer functions Telephony |
| Content Type | Text |
| Resource Type | Article |
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