Frequently Used Symbols and Abbreviations
| an, bn | Fourier coefficients |
| AiCm, AiSm, | Cross-interference coefficients |
| AmCi, AmSi | |
| ADC | Analog-to-digital converter |
| BiCm, BiSm, | Cross-interference coefficients |
| BmCi, BmSi | |
| Cx(t) | Autocovariance function |
| Cov[x, y] | Covariance between x and y |
| d | Distance between sensors |
| DAC | Digital-to-analog converter |
| DASP | Digital alias-free signal processing |
| DFT | Discrete Fourier transform |
| DOA | Direction of arrival |
| DSP | Digital signal processing |
| E[ ] | Expected value of [ ] |
| f | Frequency (Hz) |
| fs | Sampling frequency (Hz) |
| FFT | Fast Fourier transform |
| Gxx(f) | Autospectral density function |
| IDFT | Inverse discrete Fourier transform |
| IFFT | Inverse fast Fourier transform |
| mx | Mean value of x(t) |
| nk,nx,ny | Number of threshold levels |
| N | Number of samples; number of sensors in an array |
| p(t) | Probability density function |
| p(x, y) | Two-dimensional probability density function |
| P | Mean power |
| PRNG | Pseudo-random number generator |
| q | Quantization step |
| RF | Radio frequencies |
| Rs(iΔf,t), | Periodic rectangular functions |
| Rc(iΔf,t) | |
| SFDR | Spurious-free dynamic range |
| SNR | Signal-to-noise ratio |
| t | Time variable |
| tk | Time instants |
| tβ | Half of confidence interval corresponding to confidence probability β |
| TDC | Time-to-digital converter |
| Var [ ] | Variance of [ ] |
| x(t), y(t) | Signals |
| X(ω), Y(ω) | Fourier transforms of x(t) and y(t) respectively |
| αi,βi | Coefficients characterizing signal decomposition in a rectangular function basis |
| δ | Smallest ... |
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