本文選題：數(shù)字電視　切入點：DSP　出處：《湖南大學(xué)》2009年碩士論文　論文類型：學(xué)位論文

【摘要】：電視收視率是深入分析電視市場的科學(xué)基礎(chǔ),是節(jié)目評估的主要指標(biāo),是媒介計劃的制定與評估、提高廣告投放效益的有力工具。本文在分析傳統(tǒng)電視收視率缺陷和不足基礎(chǔ)上,致力于數(shù)字電視收視率調(diào)查研制工作,開發(fā)出一種基于DSP的數(shù)字電視收視率調(diào)查系統(tǒng)。 (1)通過分析數(shù)字電視收視率的研究現(xiàn)狀和發(fā)展趨勢,指出了傳統(tǒng)電視收視率調(diào)查功能的數(shù)據(jù)不精確性和延時性,闡述了基于DSP的數(shù)字電視收視率調(diào)查系統(tǒng)在數(shù)字電視收視率調(diào)查中應(yīng)用的優(yōu)勢。并在此基礎(chǔ)上研究了DSP系統(tǒng)頻譜變換的技術(shù)基礎(chǔ)——濾波器、FFT運(yùn)算和頻譜比較等。 (2)根據(jù)項目的功能要求,提出了基于DSP的數(shù)字電視收視率調(diào)查系統(tǒng)的總體方案。設(shè)計實現(xiàn)了系統(tǒng)DSP模塊、單片機(jī)控制模塊、液晶顯示模塊、DS1302計時電路模塊等硬件電路。詳細(xì)闡述了系統(tǒng)各模塊電路的組成原理和實現(xiàn)方法,給出了整個電路系統(tǒng)的原理圖。 (3)闡述了軟件的總體設(shè)計思想,結(jié)合硬件電路,設(shè)計實現(xiàn)系統(tǒng)的底層程序,詳細(xì)論述了DSP系統(tǒng)通信程序,單片機(jī)控制LCD進(jìn)行液晶顯示程序和單片機(jī)控制DS1302計時程序,并給出了系統(tǒng)的軟件設(shè)計流程及代碼實現(xiàn)。 (4)采用三知的DSP系統(tǒng)開發(fā)實驗平臺結(jié)合DSP開發(fā)軟件CCS,驗證了DSP系統(tǒng)的和單片機(jī)系統(tǒng)之間的通信。采用偉納電子的ME300B單片機(jī)開發(fā)實驗平臺結(jié)合單片機(jī)開發(fā)軟件KeilC,驗證了單片機(jī)系統(tǒng)的液晶顯示功能和計時功能。 測試結(jié)果表明,所設(shè)計的系統(tǒng)實現(xiàn)了DSP模塊和單片機(jī)控制模塊間的通信、單片機(jī)控制模塊的液晶顯示和硬件計時功能,同時設(shè)計充分考慮了系統(tǒng)功能擴(kuò)展、升級的可能性,可方便地在其基礎(chǔ)上進(jìn)行進(jìn)一步開發(fā)。
[Abstract]:Television ratings are the scientific basis for in-depth analysis of the television market, the main indicators for program evaluation, and the formulation and evaluation of media plans. On the basis of analyzing the defects and shortcomings of traditional TV ratings, this paper devotes to the investigation and development of digital TV ratings, and develops a digital TV rating investigation system based on DSP. 1) by analyzing the present situation and development trend of the digital TV ratings, the paper points out the data inaccuracy and delay of the traditional TV rating survey function. This paper expounds the advantages of the digital TV rating survey system based on DSP in the investigation of the digital TV ratings, and then studies the technical foundation of the spectrum transformation of the DSP system-FFT operation and spectrum comparison, etc. According to the functional requirements of the project, the overall scheme of the digital TV rating investigation system based on DSP is put forward. The system DSP module and the MCU control module are designed and implemented. The hardware circuit of liquid crystal display module such as DS1302 timing circuit module is described in detail, the principle and realization method of each module circuit of the system are described in detail, and the schematic diagram of the whole circuit system is given. This paper expounds the general design idea of the software, designs and implements the bottom program of the system combining with the hardware circuit, discusses in detail the communication program of the DSP system, the MCU controls the LCD to carry on the liquid crystal display program and the single-chip microcomputer controls the DS1302 timing program. The software design flow and code implementation of the system are also given. The communication between DSP system and single-chip computer system is verified by using the three-knowledge DSP system development experiment platform and DSP development software. The ME300B single-chip microcomputer development experiment platform with Weiner electron is used to develop the experiment platform combined with the single-chip computer development software KeilC. The liquid crystal display function and timing function of single-chip computer system are proved. The test results show that the system realizes the communication between the DSP module and the MCU control module, and the LCD display and hardware timing function of the MCU control module. At the same time, the possibility of the expansion and upgrade of the system function is fully considered in the design. It is convenient for further development on its basis.
【學(xué)位授予單位】：湖南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2009
【分類號】：TN949.197

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 吳金才;李岳;施偉鋒;;Simulink軟件環(huán)境的DSP串行通訊開發(fā)與應(yīng)用[J];船電技術(shù);2008年04期

2 劉政;葉漢民;;DSP與單片機(jī)通信的多種方案設(shè)計[J];單片機(jī)與嵌入式系統(tǒng)應(yīng)用;2006年03期

3 湯芳劍;;數(shù)字電視的收視率統(tǒng)計方法[J];電信快報;2008年06期

4 李迅波,廖述劍,陳光鋒,嚴(yán)順柄;高速A/D轉(zhuǎn)換器的滿功率帶寬測試[J];電子學(xué)報;1999年11期

5 張方國,廖平,王育民;數(shù)字電視中的一種新的身份認(rèn)證方案[J];電子學(xué)報;2001年07期

6 劉勁;楊平華;;PC—Cluster下的FFT并行算法分析[J];工程地球物理學(xué)報;2006年02期

7 王明順 ,趙德平;可涓流充電的串行實時鐘芯片DS1302及應(yīng)用設(shè)計[J];國外電子元器件;1997年02期

8 莫莉;謝運(yùn)祥;張?zhí)毂?;基于DSP的液晶顯示的應(yīng)用與實現(xiàn)[J];國外電子元器件;2007年09期

9 謝應(yīng)科,付博;數(shù)據(jù)全并行FFT處理器的設(shè)計[J];計算機(jī)研究與發(fā)展;2004年06期

10 王典洪;李東峰;劉兵;;EEPROM與DSP的接口技術(shù)[J];微處理機(jī);2008年02期

相關(guān)碩士學(xué)位論文 前1條

1 明禮;數(shù)字電視收視率調(diào)查技術(shù)研究及實現(xiàn)[D];電子科技大學(xué);2007年

，

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