additive white gaussian noise造句
例句與造句
- In the thesis , an approach that is based on signal - space concepts is used to efficiently evaluate the ber performance of mpsk and mqam over an additive white gaussian noise channel . in particular , accurate ber approximations are obtained and shown to be in good agreement with system simulation results . it may be useful to research and development of digital modulation technologies in hfc of our country
嘗試采用基于信號(hào)空間的分析方法，給出了awgn信道中mpsk和mqam的ber的計(jì)算方法以及由這種方法得到的ber性能曲線，然后將信號(hào)空間分析法得到的結(jié)果與通信系統(tǒng)仿真的結(jié)果進(jìn)行比較，證明其與仿真結(jié)果較好地吻合。 - In this paper , bit - error rate performance analyses are presented for coded and un - coded frequency hopping m - ary frequency - shift keyed systems under the condition of additive white gaussian noise ( awgn ) and partial band noise jamming and multitone jamming . the use of error - correct codes provide a way to improve the performance of frequency hopping system , particularly the use of reed - solomon code in a fh system under the condition of partial band noise jamming can greatly improve the performance of system . so we provide the way of coding and decoding of rs code in c language . in the end , we offer the simulation of the performance of time diversity fh / 2fsk system over partial band jamming noise channels
第一章為緒論，敘述跳頻通信的發(fā)展趨勢(shì)，以及基本概念，第二章及第三章介紹提高抗部分頻帶干擾的前向糾錯(cuò)碼reed - solomon碼的原理和實(shí)現(xiàn)方法。第四章研究跳頻通信系統(tǒng)在各種干擾條件下的性能。最后在第五章以fh mfsk系統(tǒng)為例，探討在部分頻帶干擾下的系統(tǒng)性能，并進(jìn)行計(jì)算機(jī)仿真，仿真結(jié)果表明采用分集技術(shù)和各種編碼技術(shù)對(duì)于系統(tǒng)的性能改善具有明顯的效果。 - It's difficult to find additive white gaussian noise in a sentence. 用additive white gaussian noise造句挺難的
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