TY - JOUR
T1 - Impact of phase noise on TDMS based calibration for spaceborne multi-beam antennas
AU - Lin, Yujie
AU - Bu, Xiangyuan
AU - Wang, Shuai
AU - Chai, Yuan
AU - An, Jianping
N1 - Publisher Copyright:
© 2013 IEEE.
PY - 2018/3
Y1 - 2018/3
N2 - For spaceborne multi-beam antennas (MBAs), time division multiplexed switching (TDMS) based calibration receiver can reduce implementation costs effectively and is very suitable for large-scale applications. However, in practice, random phase noise imposed by noisy local oscillators can cause significant performance degradation in TDMS-based calibration systems. Characterization of phase noise effects is therefore crucial for practical applications. In this paper, we analyze the impact of phase noise on the calibration performance for a MBA system. Specifically, we derive the relationship between the probability of correct amplitude/ phase estimation and various practical factors involving the signal-to-noise ratio (SNR), the standard deviation of phase noise, the given tolerance region, and the length of the spreading code. The results provide high efficiency for evaluating the calibration performance of the MBAs based on TDMS, especially for precisely anticipating the impact of phase noise. Finally, the accuracy of the derived results is assessed by simulations in different scenarios.
AB - For spaceborne multi-beam antennas (MBAs), time division multiplexed switching (TDMS) based calibration receiver can reduce implementation costs effectively and is very suitable for large-scale applications. However, in practice, random phase noise imposed by noisy local oscillators can cause significant performance degradation in TDMS-based calibration systems. Characterization of phase noise effects is therefore crucial for practical applications. In this paper, we analyze the impact of phase noise on the calibration performance for a MBA system. Specifically, we derive the relationship between the probability of correct amplitude/ phase estimation and various practical factors involving the signal-to-noise ratio (SNR), the standard deviation of phase noise, the given tolerance region, and the length of the spreading code. The results provide high efficiency for evaluating the calibration performance of the MBAs based on TDMS, especially for precisely anticipating the impact of phase noise. Finally, the accuracy of the derived results is assessed by simulations in different scenarios.
KW - calibration
KW - multi-beam antenna
KW - phase noise
KW - time division multiplexed switching
UR - http://www.scopus.com/inward/record.url?scp=85045181404&partnerID=8YFLogxK
U2 - 10.1109/CC.2018.8331996
DO - 10.1109/CC.2018.8331996
M3 - Article
AN - SCOPUS:85045181404
SN - 1673-5447
VL - 15
SP - 128
EP - 136
JO - China Communications
JF - China Communications
IS - 3
ER -