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The behavior of quantization spectra as a function of signal-to-noise ratio
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Flanagan, M. J. |
| Copyright Year | 1991 |
| Description | An expression for the spectrum of quantization error in a discrete-time system whose input is a sinusoid plus white Gaussian noise is derived. This quantization spectrum consists of two components: a white-noise floor and spurious harmonics. The dithering effect of the input Gaussian noise in both components of the spectrum is considered. Quantitative results in a discrete Fourier transform (DFT) example show the behavior of spurious harmonics as a function of the signal-to-noise ratio (SNR). These results have strong implications for digital reception and signal analysis systems. At low SNRs, spurious harmonics decay exponentially on a log-log scale, and the resulting spectrum is white. As the SNR increases, the spurious harmonics figure prominently in the output spectrum. A useful expression is given that roughly bounds the magnitude of a spurious harmonic as a function of the SNR. |
| File Size | 499977 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920005034 |
| Archival Resource Key | ark:/13960/t3dz55671 |
| Language | English |
| Publisher Date | 1991-11-15 |
| Access Restriction | Open |
| Subject Keyword | Communications And Radar Harmonics Random Noise Fourier Transformation Error Analysis Signal To Noise Ratios Spectrum Analysis Dynamic Range White Noise Project Seti Signal Analysis Signal Detection Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
