摘要
建立了一种改进型的Ka频段移动卫星信道模型，并将Turbo编码和正交频分复用（OFDM）技术应用于Ka频段移动卫星通信中。通过在不同天气下的仿真比较，TC—OFDM系统在误码率为10。时，可得到4．7～12．0dB的增益，降低了系统的衰减裕量，提高了系统的性能。
A modified channel model of Ka-band satellite is established. Turbo coding and the OFDM technology are applied in the Ka-band satellite communication as well. It can be concluded from the comparison of simulations under different weather conditions that the gain could be up to 4.7- 12.0 dB when the BER of the TC-OFDM system is 10^-4, so that the attenuation redundancy of the system can be reduced and its performance can be also improved.
出处
《电视技术》
北大核心
2011年第7期123-125,共3页
Video Engineering
基金
陕西省自然科学基金项目(2009JM8001-3)
空军工程大学电讯工程学院科研创新基金
