Temat: phase noise - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Blind frequency offset estimation for overlap PCC-OFDM systems in presence of phase noise
Autorzy:: Shentu, J.
Armstrong, J.
Powiązania:: https://bibliotekanauki.pl/articles/307668.pdf
Data publikacji:: 2003
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: OFDM
frequency offset
estimation
phase noise
overlap PCC-OFDM
Opis:: This paper presents a technique for frequency offset estimation for polynomial cancellation coded orthogonal frequency division multiplexing with symbols overlapped in the time domain (overlap PCC-OFDM) in the presence of phase noise. The frequency offset estimator is designed based on the subcarrier pair imbalance (SPI) caused by frequency offset. The estimation is performed in the frequency domain at the output of the receiver discrete Fourier transform (DFT). No training symbols or pilot tones are required. Simulations show that this estimator is an approximately linear function of frequency offset. Phase noise does not significantly affect the variance performance of the estimator.
Źródło:: Journal of Telecommunications and Information Technology; 2003, 2; 17-27
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Active Inductor with Feedback Resistor Based Voltage Controlled Oscillator Design for Wireless Applications
Autorzy:: Faruqe, Omar
Amin, Md. Tawfiq
Powiązania:: https://bibliotekanauki.pl/articles/226124.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: VCO
active inductor
inductance
quality factor
phase noise
figure-of-merit
Opis:: This paper presents active inductor based VCO design for wireless applications based on analysis of active inductor models (Weng-Kuo Cascode active inductor & Liang Regular Cascode active inductor) with feedback resistor technique. Embedment of feedback resistor results in the increment of inductance as well as the quality factor whereas the values are 125.6@2.4GHz (Liang) and 98.7@3.4GHz (Weng- Kuo). The Weng-Kuo active inductor based VCO shows a tuning frequency of 1.765GHz ~2.430GHz (31.7%), while consuming a power of 2.60 mW and phase noise of -84.15 dBc/Hz@1MHz offset. On the other hand, Liang active inductor based VCO shows a frequency range of 1.897GHz ~2.522GHz (28.28%), while consuming a power of 1.40 mW and phase noise of -80.79 dBc/Hz@1MHz offset. Comparing Figure-of-Merit (FoM), power consumption, output power and stability in performance, designed active inductor based VCOs outperform with the state-of-the-art.
Źródło:: International Journal of Electronics and Telecommunications; 2019, 65, 1; 57-64
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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