由于无线通信环境中存在的诸多不确定因素以及其在现代无线通信系统中的重要作用,合理的无线信道成为通信系统仿真研究的重要目的。确立信道仿真模型的目的就是为了尽可能的得到实际信道的统计特性,该文针对Jakes提出的信道模型,通过仿...由于无线通信环境中存在的诸多不确定因素以及其在现代无线通信系统中的重要作用,合理的无线信道成为通信系统仿真研究的重要目的。确立信道仿真模型的目的就是为了尽可能的得到实际信道的统计特性,该文针对Jakes提出的信道模型,通过仿真来分析其局限性,并参考其中的谐波叠加(sum of sinusoids,SOS)法,来建立一种采用了随机分支增益、随机初始相位和有条件的随机多普勒频率改进的信道模型。展开更多
Hemingway’s masterpiece The Sun Also Rises depicts some American expatriates living in Europe after the First World War.In despair,the dissolute group of American men and women hanker after excitement by feasting and...Hemingway’s masterpiece The Sun Also Rises depicts some American expatriates living in Europe after the First World War.In despair,the dissolute group of American men and women hanker after excitement by feasting and flirting their days away.Jake,the protagonist of this novel,also leads a riotous life every day.With spiritual ecology theory,this paper is to interpret Jake Barnes’spiritual vacuum and explore Jake’s efforts to reconstruct his spiritual balance and harmony.This thesis consists of two parts.Part one reveals Jake’s spiritual vacuum including loss of self-confidence,traditional values,and decadence in life.Facing emptiness,Jake tries to drink excessively to numb himself.The second part explores his ecological regression by fulfilling the harmony between himself and nature,himself and his inner heart.展开更多
文摘由于无线通信环境中存在的诸多不确定因素以及其在现代无线通信系统中的重要作用,合理的无线信道成为通信系统仿真研究的重要目的。确立信道仿真模型的目的就是为了尽可能的得到实际信道的统计特性,该文针对Jakes提出的信道模型,通过仿真来分析其局限性,并参考其中的谐波叠加(sum of sinusoids,SOS)法,来建立一种采用了随机分支增益、随机初始相位和有条件的随机多普勒频率改进的信道模型。
文摘Hemingway’s masterpiece The Sun Also Rises depicts some American expatriates living in Europe after the First World War.In despair,the dissolute group of American men and women hanker after excitement by feasting and flirting their days away.Jake,the protagonist of this novel,also leads a riotous life every day.With spiritual ecology theory,this paper is to interpret Jake Barnes’spiritual vacuum and explore Jake’s efforts to reconstruct his spiritual balance and harmony.This thesis consists of two parts.Part one reveals Jake’s spiritual vacuum including loss of self-confidence,traditional values,and decadence in life.Facing emptiness,Jake tries to drink excessively to numb himself.The second part explores his ecological regression by fulfilling the harmony between himself and nature,himself and his inner heart.