衛(wèi)星導(dǎo)航論文應(yīng)用于衛(wèi)星導(dǎo)航射頻芯片的中頻濾波器研究

1、衛(wèi)星導(dǎo)航論文：應(yīng)用于衛(wèi)星導(dǎo)航射頻芯片的中頻濾波器研究【中文摘要】連續(xù)時(shí)間濾波器是模擬濾波器的一種。它具有工作在連續(xù)時(shí)間這一重要特性,所以連續(xù)時(shí)間濾波器被廣泛應(yīng)用于通信、視頻信號(hào)處理、計(jì)算機(jī)存儲(chǔ)系統(tǒng)、電阻測量、自動(dòng)控制等領(lǐng)域,尤其是在數(shù)?；旌闲盘?hào)和集成電路中有著重要的應(yīng)用。OTA-C結(jié)構(gòu)的連續(xù)時(shí)間濾波器具有良好的高頻性、極強(qiáng)的電路綜合能力和CMOS工藝的可兼容性,被廣泛應(yīng)用于大規(guī)模集成電路中。本文以我國北斗二代衛(wèi)星導(dǎo)航接收機(jī)為課題背景,對(duì)OTA-C模擬集成濾波器進(jìn)行系統(tǒng)的研究。不同于GPS接收機(jī)窄帶中頻濾波器,北斗二代衛(wèi)星接收機(jī)中頻濾波器為寬帶帶通濾波器。所以本文的主要目標(biāo)是設(shè)計(jì)功耗低、可集成的

2、“北斗”中頻寬帶帶通濾波器。主要工作是通過研究OTA-C有源濾波器,基于“北斗”接收機(jī)基帶芯片所需的中頻信號(hào)特性,確定接收機(jī)中頻濾波器性能要求。最后采用TMIC 0.18m CMOS工藝設(shè)計(jì)了一款適合于“北斗”系統(tǒng)衛(wèi)星導(dǎo)航接收機(jī)的高帶寬中頻帶通濾波器。論文首先給出課題和選題意義,介紹集成有源濾波器發(fā)展歷程和研究現(xiàn)狀。然后給出了CMOS跨導(dǎo)運(yùn)算放大器的基本概念、基本應(yīng)用和幾種CMOS跨導(dǎo)運(yùn)算放大器結(jié)構(gòu),并提出了本課題所采用的OTA結(jié)構(gòu)電路。詳細(xì)說明了二階和高階OTA-C結(jié)構(gòu)濾波器的設(shè)計(jì)方法,并給出了相應(yīng)的設(shè)計(jì)實(shí)例,重點(diǎn)闡述了一款適合于衛(wèi)星接收機(jī)的寬帶中頻濾波器設(shè)計(jì)實(shí)例。ADS仿真結(jié)果表明:該OT

3、A-C濾波器的功能和性能滿足北斗二代衛(wèi)星接收機(jī)中頻濾波器需求。最后,針對(duì)濾波器在制造容差,工藝變化,溫度漂移以及器件老化影響下,發(fā)生頻率漂移的問題,給出了幾種頻率調(diào)諧方式?！居⑽恼緾ontinuous-time filters characterized of working continuously are widely used in communications, video signal processing, computer storage systems, electronic measurement, automatic control and so on, especia

4、lly in the mixed signal circuits of digit and analog. Continuous-time filters structured with OTA-C are applied on a large scale in integrated circuits because they have good high frequency characteristic, electrically controlled ability, and compatibility with CMOS.This study discusses systematical

5、ly the OTA-C analog integrated filters on the background of RNSS satellite navigation receiver. RNSS broadband satellite receiver IF filters, different from GPS receiver narrowband IF filters, are Broadband BP filters. The main objective of this study is to design RNSS IF broadband BP filters with l

6、ess consumption. Main task is to make sure the performance of the receiver IF filters through researching OTA-C active filter and the IF signal required by RNSS receiver. Finally we design a broadband BP IF filter for RNSS navigation satellite receiver system withTMIC 0.18m CMOS.Firstly we brief the

7、 significance of this study with the developments and states of integrated active filter, and the definition, application, classes of CMOS OTA-C and the OTA circuits used in this study. Then we illustrate several programs and examples with OTA-C structure fully integrated active filters and emphasiz

8、e the example of fitting the satellite receiver wideband IF filters. ADS simulation result shows that the function and performance of OTA-C filters matched with the RNSS satellite receiver IF filter. Finally, we give several frequency tunings to resolve the frequency drift caused by the manufacturin

9、g, process changes, temperature drift and aging device.【關(guān)鍵詞】衛(wèi)星導(dǎo)航 跨導(dǎo)運(yùn)算放大器 有源濾波器 頻率調(diào)諧 CMOS工藝【英文關(guān)鍵詞】Satellite Navigation OTA Active Filters Frequency tuning CMOS process【目錄】應(yīng)用于衛(wèi)星導(dǎo)航射頻芯片的中頻濾波器研究 摘要 9-10 ABSTRACT 10 第一章 緒論 11-19 1.1 課題研究背景及其研究意義 11-13 1.2 濾波器概述 13-15 1.2.1 離散時(shí)間濾波器 14 1.2.2 連續(xù)時(shí)間濾波器 14-15 1

10、.3 跨導(dǎo)-電容濾波器研究現(xiàn)狀 15-18 1.4 論文章節(jié)安排 18-19 第二章 跨導(dǎo)運(yùn)算放大器設(shè)計(jì)及應(yīng)用 19-34 2.1 跨導(dǎo)運(yùn)算放大器設(shè)計(jì) 19-25 2.1.1 跨導(dǎo)運(yùn)放基本概念 19-20 2.1.2 運(yùn)算放大器性能指標(biāo) 20-21 2.1.3 基本型CMOS跨導(dǎo)運(yùn)算放大器 21-22 2.1.4 改進(jìn)后CMOS跨導(dǎo)運(yùn)算放大器 22-25 2.2 設(shè)計(jì)實(shí)例 25-26 2.2.1 跨導(dǎo)單元結(jié)構(gòu)設(shè)計(jì) 25-26 2.2.2 共模電路設(shè)計(jì) 26 2.3 跨導(dǎo)運(yùn)算放大器的應(yīng)用 26-32 2.3.1 模擬電阻 27-28 2.3.2 增益可控放大器 28-29 2.3.3 回轉(zhuǎn)器 2

11、9 2.3.4 壓控模擬電感 29-30 2.3.5 運(yùn)算電路 30-32 2.4 本章小結(jié) 32-34 第三章 OTA-C濾波器結(jié)構(gòu)及設(shè)計(jì) 34-58 3.1 濾波器轉(zhuǎn)移函數(shù) 34-35 3.2 二階OTA-C濾波器設(shè)計(jì) 35-41 3.2.1 單元電路信號(hào)流圖設(shè)計(jì) 36-37 3.2.2 二階濾波器信號(hào)流圖法 37-39 3.2.3 一種通用OTA-C雙二階電路 39-41 3.3 高階OTA-C濾波器設(shè)計(jì) 41-46 3.3.1 LC梯形電路法 41-44 3.3.2 多環(huán)反饋法 44-45 3.3.3 級(jí)聯(lián)法 45-46 3.4 設(shè)計(jì)實(shí)例 46-53 3.4.1 全集成低通有源濾波器設(shè)計(jì) 47-49 3.4.2 全集成高通有源濾波器設(shè)計(jì) 49-50 3.4.3 應(yīng)用于衛(wèi)星接收機(jī)中頻濾波器電路設(shè)計(jì) 50-53 3.5 濾波器仿真結(jié)果分析 53-56 3.5.1 OTA跨導(dǎo)電路系統(tǒng)仿真分析 53-54 3.5.2 濾波器電路系統(tǒng)仿真分析 54-56 3.6 濾波器設(shè)計(jì)步驟 56-57 3.7 本章小結(jié) 57-58 第四章 濾波器調(diào)諧系統(tǒng) 58-65 4.1 PLL調(diào)諧方式 59-61 4.1.1 VCO諧振條件 60-61 4.1.2 限幅方法 61 4.2 單積分器調(diào)諧方式 61-6