本文選題：星間鏈路 + 收發(fā)信機(jī)　； 參考：《國(guó)防科學(xué)技術(shù)大學(xué)》2014年碩士論文

【摘要】：收發(fā)信機(jī)的抗干擾性能關(guān)系到星間鏈路系統(tǒng)的安全性,在高精度測(cè)距和有限星載處理能力約束下增加抗干擾環(huán)節(jié)會(huì)增加收發(fā)信機(jī)復(fù)雜度并且引入測(cè)距誤差,盲目增加抗干擾措施得不償失,定量分析擴(kuò)頻測(cè)距中的天然抗窄帶干擾能力可以為在什么條件下不需要采取抗干擾措施提供決策,對(duì)優(yōu)化系統(tǒng)設(shè)計(jì)具有重要意義。擴(kuò)頻天然具有一定的抗窄帶干擾能力,在干擾能量小時(shí),擴(kuò)頻自然可以抗干擾,在干擾能量大時(shí),擴(kuò)頻還是不能抗干擾,這個(gè)能量的臨界線就是本文要研究的性能限。由此產(chǎn)生了本文研究的基本問(wèn)題——能否用某種量值來(lái)定量地表示擴(kuò)頻測(cè)距中的抗窄帶干擾的天然能力。為此必須解決以下三個(gè)關(guān)鍵技術(shù)問(wèn)題:1.擴(kuò)頻測(cè)距的抗窄帶干擾性能限的定義問(wèn)題。在測(cè)距優(yōu)化設(shè)計(jì)中,用什么量值作為性能限,關(guān)系到性能限的研究思路和分析方法,也決定了結(jié)論能否直接指導(dǎo)接收機(jī)設(shè)計(jì)決策。因此,如何定義擴(kuò)頻測(cè)距的抗窄帶干擾性能限成為星間鏈路收發(fā)信機(jī)抗窄帶干擾性能限研究的關(guān)鍵技術(shù)問(wèn)題。2.抗單頻干擾性能限的定量計(jì)算方法問(wèn)題。單頻干擾是窄帶干擾的極限狀態(tài),窄帶信號(hào)與單頻信號(hào)具有相似的特征,因此其對(duì)測(cè)量誤差的影響是相似的�？梢韵妊芯繂晤l干擾的影響機(jī)理,從中發(fā)現(xiàn)特征與規(guī)律,作為窄帶干擾的性能限的定性認(rèn)識(shí),從中找到研究方向和解決問(wèn)題的思路。因此,如何定量計(jì)算擴(kuò)頻測(cè)距的抗單頻干擾性能限成為星間鏈路收發(fā)信機(jī)抗窄帶干擾性能限研究的關(guān)鍵技術(shù)問(wèn)題。3.抗窄帶干擾性能限的定量確定研究問(wèn)題。窄帶信號(hào)的影響很復(fù)雜,可以理解為無(wú)限多個(gè)單頻的總和。顯然抗單頻干擾性能限并非直觀可見(jiàn)的,所以確定抗窄帶干擾性能限是一件極其困難的事。因此,如何定量確定擴(kuò)頻測(cè)距的抗窄帶干擾性能限成為星間鏈路收發(fā)信機(jī)抗窄帶干擾性能限研究的關(guān)鍵技術(shù)問(wèn)題。為解決第一個(gè)關(guān)鍵技術(shù)問(wèn)題,論文對(duì)擴(kuò)頻測(cè)距的抗窄帶干擾性能限進(jìn)行了定義;為解決第二個(gè)關(guān)鍵技術(shù)問(wèn)題,論文對(duì)擴(kuò)頻測(cè)距的抗單頻干擾性能限進(jìn)行了定量計(jì)算;為解決第三個(gè)關(guān)鍵技術(shù)問(wèn)題,論文對(duì)擴(kuò)頻測(cè)距的抗窄帶干擾性能限進(jìn)行了定量分析。論文以采用CSTDD信號(hào)體制的星間鏈路收發(fā)信機(jī)的抗窄帶干擾性能限為研究對(duì)象,對(duì)上述關(guān)鍵技術(shù)問(wèn)題進(jìn)行定量計(jì)算、分析,設(shè)計(jì)實(shí)驗(yàn)測(cè)試方法和系統(tǒng),得到了一定的理論研究成果,達(dá)到了預(yù)期目的。
[Abstract]:The anti-jamming performance of transceiver relates to the security of intersatellite link system. Under the constraint of high precision ranging and limited spaceborne processing ability, increasing anti-jamming link will increase the complexity of transceiver and introduce ranging error.Blind increase of anti-jamming measures outweighs the loss. Quantitative analysis of the natural narrowband interference resistance in spread spectrum ranging can provide a decision on the conditions under which anti-jamming measures are not needed, which is of great significance to the optimization of system design.Spread spectrum has a certain ability to resist narrowband interference. When interference energy is small, spread spectrum can resist interference. When interference energy is large, spread spectrum can not resist interference. This critical line of energy is the performance limit to be studied in this paper.As a result, the basic problem studied in this paper is whether the natural ability to resist narrowband interference in spread spectrum ranging can be quantitatively expressed by a certain quantity.To this end, we must solve the following three key technical issues: 1.Definition of narrowband interference performance limits for spread spectrum ranging.In the optimal design of ranging, what value is used as the performance limit, which is related to the research ideas and analysis methods of the performance limit, which also determines whether the conclusion can direct the design decision of the receiver.Therefore, how to define the narrow-band interference performance limit of spread spectrum ranging becomes the key technical problem in the research of narrowband interference performance limit of inter-satellite link transceiver.The problem of quantitative calculation method for the performance limit of anti-single frequency interference.Single frequency interference is the limit state of narrow band interference, and narrow band signal and single frequency signal have similar characteristics, so their influence on measurement error is similar.The influence mechanism of single frequency interference can be studied first, and the characteristics and rules can be found out from it, which can be regarded as the qualitative recognition of the performance limit of narrowband interference, and the research direction and the way to solve the problem can be found out.Therefore, how to calculate quantitatively the anti-interference performance limit of spread spectrum ranging has become the key technical problem in the research of narrowband interference performance limit of inter-satellite link transceiver.Quantitative determination of narrowband interference performance limits.The influence of narrowband signals is complex and can be understood as the sum of infinite single frequencies.It is obvious that the performance limit against single frequency interference is not directly visible, so it is very difficult to determine the performance limit of narrow band interference.Therefore, how to quantitatively determine the narrowband interference performance limit of spread spectrum ranging has become a key technical problem in the study of narrowband interference performance limit of inter-satellite link transceiver.In order to solve the first key technical problem, this paper defines the performance limit of anti-narrowband interference of spread spectrum ranging, and in order to solve the second key technical problem, the performance limit of anti-single frequency interference of spread spectrum ranging is calculated quantitatively.In order to solve the third key technical problem, the performance limit of narrowband interference in spread spectrum ranging is quantitatively analyzed in this paper.Taking the narrowband interference rejection performance limit of inter-satellite link transceiver based on CSTDD signal system as the research object, the key technical problems mentioned above are quantitatively calculated, analyzed, and the experimental test method and system are designed.Some theoretical research results have been obtained, and the expected purpose has been achieved.
【學(xué)位授予單位】：國(guó)防科學(xué)技術(shù)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TN911.4;TN967.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前7條

1 郭淑霞;胡占濤;;窄帶干擾下北斗衛(wèi)星導(dǎo)航信號(hào)性能分析[J];計(jì)算機(jī)應(yīng)用研究;2014年02期

2 劉禹圻;胡修林;冉一航;柯構(gòu);;衛(wèi)星導(dǎo)航信號(hào)抗單頻干擾性能研究[J];電子學(xué)報(bào);2011年06期

3 譚維鳳;馮立強(qiáng);王兵;;直擴(kuò)系統(tǒng)對(duì)抗窄帶干擾能力的影響因素分析[J];現(xiàn)代電子技術(shù);2010年17期

4 魏安全;沈連豐;;周期序列DSSS系統(tǒng)抗CW干擾性能分析[J];通信學(xué)報(bào);2007年05期

5 胡波,胡修林,余曉園;不同頻率位置的窄帶干擾對(duì)DSSS通信性能的影響分析[J];信號(hào)處理;2005年05期

6 李志強(qiáng),張北江,李廣俠;周期PN序列抗單頻干擾能力的分析[J];電子科技大學(xué)學(xué)報(bào);2004年02期

7 陳巖,安建平,羅偉雄;擴(kuò)頻通信抗窄帶干擾技術(shù)[J];系統(tǒng)工程與電子技術(shù);2003年02期

相關(guān)博士學(xué)位論文 前1條

1 張春海;直接序列擴(kuò)頻通信系統(tǒng)抗干擾技術(shù)研究[D];國(guó)防科學(xué)技術(shù)大學(xué);2006年

，

本文編號(hào)：1764883