signal shaping造句
例句與造句
- This paper investigates the problems about the base - band signal shaping and the multi - rate signal processing of the radio - frequency signal
本文對(duì)基帶信號(hào)的成形和射頻信號(hào)的多速率處理進(jìn)行了研究。 - Adaptive modulation mainly include several problem for example signal shape , channel estimation , all digital receiver and so on . since the channel referring to adaptive modulation is very hostile in wireless transmission channel , its algorithms and architectures used for the modulation and demodulation should be carefully devised and considered . designing appropriate algorithms and architectures of the adaptive modulation are main research goal of this paper to meet the need of flat fading channel and selective fading channel
自適應(yīng)調(diào)制技術(shù)主要包括信號(hào)成形、信道估計(jì)和檢測(cè)、全數(shù)字接收等方面的問題，由于自適應(yīng)調(diào)制所涉及的信道是非常惡劣的無(wú)線傳輸信道，其調(diào)制與解調(diào)的算法和結(jié)構(gòu)必須加以精心的設(shè)計(jì)和考慮，針對(duì)具體所假設(shè)的平衰落和選擇性衰落的無(wú)線信道情況來(lái)設(shè)計(jì)自適應(yīng)調(diào)制系統(tǒng)的算法和結(jié)構(gòu)是本文研究的主要方向。 - 9 inspect the amount , arrangement , fixing position of the signal equipment ( inspect all kinds of signal equipment according to “ navigation signal arrangement and mast structure drawing ” “ safe drawing ” ( such as signal light , signal shape things , signal flag , pyrotechnic signal , self igniting light of lifebuoy , sound signal etc ) whether satisfy finished plan , and check the qualified certificate of this equipment before and after installation on the ship
信號(hào)設(shè)備的檢驗(yàn)與試驗(yàn)（按照《航行信號(hào)布置及桅桿結(jié)構(gòu)圖》 ， 《安全圖》 ）檢查各種信號(hào)設(shè)備（如信號(hào)燈、信號(hào)形狀用品、信號(hào)旗、煙火信號(hào)、救生圈的自亮燈、聲音信號(hào)等）的數(shù)量、布置、安裝位置是否滿足設(shè)計(jì)的完工圖紙，并在安裝到船上之前和之后檢查這些設(shè)備的質(zhì)量合格證。 - The emphasis of the thesis is base - band signal shaping and programmable interpolation algorithm . we introduce the basic theory of base - band signal shaping , and the effect of the digitizing of the ideal raised cosine rollof signal g ( t ) is attentioned . the shaping filter parameters are determined based on the system specifications , and the simulation results are given
首先從降低鄰近碼間干擾原則出發(fā),討論了基帶成形的基本原理與升余弦滾降濾波器的時(shí)頻特性,重點(diǎn)分析將理想的滾降波形g ( t )數(shù)字化后對(duì)頻譜的影響,并且根據(jù)系統(tǒng)指標(biāo),確定了各項(xiàng)參數(shù),給出了具體的設(shè)計(jì)舉例和仿真結(jié)果。 - This dissertation concentrates on the difficult problems that the pipeline or pipe defects are not estimated or evaluated quantitatively , intelligently by mfl ( magnetic flux leakage ) inspection method . from the practical demand , theoretical analysis and experiments or testing , the mfl inspection technology of pipeline or pipe defects are explained , summarized in detail in the whole paper , at the same time , the relationship between the mfl field distribution , the mfl signal shape and the defect geometry or severity , the analysis of the mfl data and the compensation of influencing the relationship factors , signal feature extraction , intelligent recognition of defect parameters and so on are studied systematically
論文針對(duì)管道（鋼管）缺陷漏磁檢測(cè)定量化、智能化的難題，緊密結(jié)合檢測(cè)現(xiàn)場(chǎng)實(shí)際需要，通過理論分析和大量實(shí)驗(yàn)，系統(tǒng)分析總結(jié)了管道（鋼管）缺陷漏磁智能檢測(cè)技術(shù)，并在缺陷漏磁場(chǎng)分布以及缺陷漏磁信號(hào)與缺陷外形參數(shù)間的關(guān)系、缺陷漏磁信號(hào)分析、漏磁信號(hào)影響因素補(bǔ)償、缺陷漏磁場(chǎng)波形特征提取和缺陷外形尺寸定量識(shí)別等方面進(jìn)行了深入研究，主要成果和創(chuàng)新如下：引出磁偶極子模型近似分析常見缺陷漏磁場(chǎng)，針對(duì)磁偶極子模型的不足，將有限元方法應(yīng)用到缺陷漏磁場(chǎng)分析，實(shí)現(xiàn)了常見管道樣本缺陷漏磁場(chǎng)的模擬。 - It's difficult to find signal shaping in a sentence. 用signal shaping造句挺難的
- Aiming at realizing an all - digital programmable qpsk modulator with data rates covering 2k ~ 2 . 048mbps , this thesis puts research on modulator architecture , base - band signal shaping , programmable interpolation algorithm , and digital signal processing algorithms with fpga . we have completed the program design and the timing simulation , the pcb board has been fabricated . the similation result is given to verify the design
本文以實(shí)現(xiàn)2k ~ 2 . 048mbps傳輸速率的變碼速率全數(shù)字qpsk調(diào)制器為目標(biāo),對(duì)全數(shù)字調(diào)制器結(jié)構(gòu)、基帶成形濾波、高倍可變內(nèi)插以及基于fpga的信號(hào)處理算法等問題進(jìn)行了研究,編寫了調(diào)制模塊的vhdl程序,完成了軟件環(huán)境下的驗(yàn)證調(diào)試,并設(shè)計(jì)實(shí)現(xiàn)了板級(jí)調(diào)試系統(tǒng)。