![Applied Sciences | Free Full-Text | Single and Multiple Continuous-Wave Interference Suppression Using Adaptive IIR Notch Filters Based on Direct-Form Structure in a QPSK Communication System Applied Sciences | Free Full-Text | Single and Multiple Continuous-Wave Interference Suppression Using Adaptive IIR Notch Filters Based on Direct-Form Structure in a QPSK Communication System](https://pub.mdpi-res.com/applsci/applsci-12-02186/article_deploy/html/images/applsci-12-02186-g001.png?1645514041)
Applied Sciences | Free Full-Text | Single and Multiple Continuous-Wave Interference Suppression Using Adaptive IIR Notch Filters Based on Direct-Form Structure in a QPSK Communication System
![Frequency response of notch filter with 50Hz central frequency and 5Hz... | Download Scientific Diagram Frequency response of notch filter with 50Hz central frequency and 5Hz... | Download Scientific Diagram](https://www.researchgate.net/publication/232650750/figure/fig3/AS:341641056538633@1458464983668/Frequency-response-of-notch-filter-with-50Hz-central-frequency-and-5Hz-half-width.png)
Frequency response of notch filter with 50Hz central frequency and 5Hz... | Download Scientific Diagram
![discrete signals - Problems discretizing a notch filter - Chebyshev Type I - Signal Processing Stack Exchange discrete signals - Problems discretizing a notch filter - Chebyshev Type I - Signal Processing Stack Exchange](https://i.stack.imgur.com/evKz3.png)