It pointed out that there are four characteristics in Modern Chinese "Spatial System": 1 Temporal Space, Spatial Space and Abstract space(including quantity, scope, etc.) share the same linguistic system which we called "Spatial System", i.e., an abstract semantic model composed of several coordinate axis.

序論指出現(xiàn)代漢語(yǔ)的"空間系統(tǒng)"具有四個(gè)特點(diǎn)：1空間强奸,com、時(shí)間以及某些抽象空間都具有共同的語(yǔ)言結(jié)構(gòu)欧美成人h版在线观看，可以把它們統(tǒng)稱(chēng)為"空間系統(tǒng)"婷婷五月国产精品一区二区，即由若干坐標(biāo)軸構(gòu)成的抽象的語(yǔ)義模型视频A黄。

With respect to phonetics, Distinctive Features for the phonetic syncopation of spatial information are extracted based on Bertin's retinal variables. The importance of geographic reality, cognitive laws and geometric laws in the syncopation is pointed out following the thorough inspection of the physical characteristics of spatial information and a phonetic hierarchy of phoneme欧美a片黄片大片、 phoneme combination is proposed after the summarization of different methods of syncopation in Psychology, Pattern Recognition, Mathematic Morphology and Cartography, which provides linguistic interpretation for cartographic symbol design and understanding. With respect to the property that map symbol is represented as the combination of attribute and geometry in digital form of spatial information, suprasegmental phoneme as unit is proposed which deals with the high level phonetic units and their structure with the bend of curve and the simple area of complex area as primitive.

在語(yǔ)音結(jié)構(gòu)方面精品黄色网站在线入口，基于Bertin的視覺(jué)變量，提取了產(chǎn)生空間信息語(yǔ)音切分的區(qū)別特征美女被操逼网站；對(duì)空間信息的物理特征進(jìn)行了詳盡分析国产黄片视频免费看，指出了地理真實(shí)、認(rèn)知規(guī)律和幾何規(guī)律在語(yǔ)音切分中的重要作用99国产性爱；在總結(jié)心理學(xué)6080午夜影院三级片、模式識(shí)別、數(shù)學(xué)形態(tài)學(xué)和地圖學(xué)等相關(guān)切分理論的基礎(chǔ)上黄黄黄片AAAAA，提出了空間信息音位系統(tǒng)以及音位組合規(guī)律日本黄a网站，為地圖符號(hào)設(shè)計(jì)與理解提供了語(yǔ)言學(xué)解釋?zhuān)会槍?duì)地圖符號(hào)通常在空間信息中表現(xiàn)為屬性和形態(tài)相結(jié)合的特點(diǎn)，提出在超音段音位層次上重點(diǎn)關(guān)注以線切分單元——彎曲和復(fù)雜面切分單元——彎曲構(gòu)成的簡(jiǎn)單面為基本元素的語(yǔ)音高級(jí)層次及其結(jié)構(gòu)樱花视频操逼。

The reality includes spatial reality and temporal reality. By the spatial reality we mean human percepts realistic information from source to destination in 3D spatial space. The socalled temporal reality means these information are represented in real-time. These concepts describe the IVAR in four detail contents, i.

完整的真實(shí)感包括時(shí)間真實(shí)感和空間真實(shí)感兩個(gè)方面人人操操操操操操，空間真實(shí)感是指從信源到信宿的空間方位上的準(zhǔn)確性，時(shí)間真實(shí)感是指信息到達(dá)人類(lèi)感知系統(tǒng)時(shí)間上的準(zhǔn)確性国产农村一级毛片精品久久。

The basic theories of visualization on fuzzy spatial information and fuzzy spatial process are summarized; the relationship between GIS and the human spatial cognition system are analyzed, and it is regarded that there exists difference between the cognition of cartographer and of the map user.

總結(jié)了模糊空間信息和模糊空間過(guò)程可視化的基礎(chǔ)理論黄色操逼免费网站，比較分析了地理信息系統(tǒng)與人的空間認(rèn)知系統(tǒng)国产内射xx在线，并認(rèn)為制圖者和用圖者具有不同的認(rèn)知過(guò)程，從而分別建立了制圖者和用圖者的認(rèn)知模型美女裸无遮挡免费网站A片。

Analysis on UPCA model spatial sensitivityAgainst the situation that most urban CA model with no consideration of the spatial scale of data input, taking Changsha as the example, it analyzed the UPCA model spatial sensitivity, drew that the appropriate resolution and the neighborhood structure of Changsha area are respectively 30m and C-1 (taking a cell as radius circular neighborhood).

3UPCA模型的空間尺度敏感性分析針對(duì)目前大多城市CA模型在模擬城市空間形態(tài)演變時(shí)沒(méi)有考慮輸入數(shù)據(jù)的空間尺度影響美女黄色乱轮视频，本研究論證UPCA模型模擬長(zhǎng)沙市城市空間形態(tài)的空間尺度敏感性，得出了應(yīng)用于長(zhǎng)沙地區(qū)的適宜分辨率和鄰域結(jié)構(gòu)分別為30m和C-1(以一個(gè)元胞為半徑的圓形鄰域)啊灬啊灬高潮来了视频在线观看，并基于此空間尺度獲取了模型的最佳校驗(yàn)參數(shù)欧美三级视频观看。

Then three candidate modulation schemes exploiting spatial dimensions are proposed. At last, the three modulation schemes are compared by power efficiency and bandwidth efficiency. It shows that spatial quadrature amplitude modulation scheme is appropriate for long distance wireless optical communications for its high bandwidth efficiency and spatial circular symmetry.

參照傳統(tǒng)時(shí)域信號(hào)設(shè)計(jì)方案，提出了三種空間調(diào)制信號(hào)具體設(shè)計(jì)方案女性视频网站,色，并從帶寬效率和功率效率兩性能上進(jìn)行了比較日韩午夜福利版在线播放观看，結(jié)果表明正交幅度調(diào)制具有帶寬效率高、功率效率低的特點(diǎn)人人操毛片免费看，而且采用的信號(hào)點(diǎn)越多其帶寬效率就越高久欠精品国国产99国产精2020，另外其空間信號(hào)圖案還具有圓對(duì)稱(chēng)性，因此非常適合在空間帶寬有限的遠(yuǎn)距離無(wú)線光通信中使用在线播放精品。

It is in urgent need to build a traffic accident information spatial-database based on GIS. The contents of a perfect traffic accident information spatial-database should include three parts, i.e. spatial-database, influential factors database and database of metadata and data dictionary. Its important application value is described. The data in the database are organized with the idea of layer-organization in GIS. The structure of each table and correlation in-between these tables are designed in detail. T...

筆者分析了建立基于GIS的交通事故信息空間數(shù)據(jù)庫(kù)的緊迫性人人性爱视频在线观看；探討了完備的交通事故信息數(shù)據(jù)庫(kù)的內(nèi)容構(gòu)成，認(rèn)為應(yīng)包括空間數(shù)據(jù)庫(kù)人人操人人爱乳房、影響因素?cái)?shù)據(jù)庫(kù)以及元數(shù)據(jù)和數(shù)據(jù)字典庫(kù)三大部分免费啪视频；研討了交通事故空間數(shù)據(jù)庫(kù)的重要應(yīng)用價(jià)值，進(jìn)而采用GIS的分層組織思想對(duì)交通事故信息空間數(shù)據(jù)庫(kù)中的數(shù)據(jù)進(jìn)行組織欧美大乳爱爱视频小日本爱爱视频；詳細(xì)設(shè)計(jì)了各個(gè)數(shù)據(jù)表以及數(shù)據(jù)表間的關(guān)系日韩欧美偷拍一区二区三区，建立了包含交通事故對(duì)象、人AAA级黄色毛片、車(chē)男人扒开女人的腿桶到爽视频、路以及環(huán)境等要素的交通事故空間數(shù)據(jù)庫(kù)，為交通事故研究提供完備的數(shù)據(jù)支持啪啪流水视频。

The main job and contribution of this paper are as follows:Based on narrowband signal processing, we propose a new method for FH signal blind detection and blind parameter estimation. Firstly, compute the cross-correlation function of FH signals from multichannels, then we get the cross power spectral density matrixCSDM Secondly, select the hops of FH signals from the CSDM via processing and analyzing the CSDM, meanwhile reduce the influence coming from noise, fixed frequency signal and other interferences; Lastly, estimating the DOA of every hop and according to the DOA, we can separate the hops, get the number of FH signals and their parameters. Propose a new method for designing the threshold in FH signal detection. This method makes it easy to get the threshold by theoretic computing and it can extremely reduce the interference of non-FH signals.Based on broadband signal processing, we propose a new method for FH signal blind detection and blind parameter estimation. Firstly, get the DOA of the signals by wideband spatial spectrum estimation; secondly, separate the signals by spatial filtering using wideband beamformer; Lastly, we propose two methods for FH signal blind detection and blind parameter estimation, one is for several constant hop-rate FH signals whose dwell-time are different and another is for a single FH signal whose hop-rate is alterable.By employing spatial interpolation in broadband signal beamforming, it can reduce the number of antenna elements and corresponding RF modules, A/D converters, etc. It can also eliminate the mutual coupling between antenna elements while getting the narrower main beamwidth and lower sidelobe level.

本文的主要研究工作和貢獻(xiàn)如下：●提出了一種基于窄帶處理的FH信號(hào)盲檢測(cè)和參數(shù)盲估計(jì)的實(shí)現(xiàn)方法亚洲黄色免费在线，即首先求出多路信號(hào)之間的互相關(guān)，進(jìn)而得到互功率譜密度矩陣日韩精品第四页在线观看网站免费，然后通過(guò)對(duì)CSDM進(jìn)行對(duì)折處理來(lái)抑制噪聲自拍日韩动漫欧美视频网站、定頻信號(hào)及其他干擾的影響，并將所有屬于FH信號(hào)的hop(每一跳的駐留時(shí)間在時(shí)頻圖上持續(xù)的線段)從CSDM中篩選出來(lái)日本黄页网址免费，最后用陣列信號(hào)處理中的到達(dá)方向估計(jì)理論在頻域中估計(jì)出各個(gè)hop的方向參數(shù)欧美高清激情XXXXX，利用方位信息完成FH信號(hào)分離并得到FH信號(hào)的數(shù)目及其各自的參數(shù)集；●提出了一種確定FH信號(hào)檢測(cè)門(mén)限的策略国产人成视频在线观看播放，該策略不僅使得檢測(cè)門(mén)限能夠通過(guò)理論計(jì)算得到榴莲视频ios网址在线观看网站，而且還顯著地抑制了非跳頻信號(hào)的干擾，從而能有效地檢測(cè)出FH信號(hào)717秋霞影院；●提出了一種基于寬帶處理的短波FH信號(hào)盲檢測(cè)和參數(shù)盲估計(jì)的實(shí)現(xiàn)方法亚洲色欲色香天天综合网，即首先利用寬帶空間譜測(cè)向技術(shù)得到接收信號(hào)的DOA国产极品最新在线观看AV，然后采用寬帶波束形成技術(shù)對(duì)特定方向進(jìn)行空間濾波，實(shí)現(xiàn)多個(gè)信號(hào)的分離欧美一级在线播放器，最后分別提出了兩種FH信號(hào)的盲檢測(cè)和參數(shù)盲估計(jì)方法午夜福利合集92精品人妻，第一種方法適用于空間某個(gè)特定方向上存在著幾個(gè)駐留時(shí)間不同的恒跳速FH信號(hào)和其他干擾信號(hào)的混合信號(hào)，第二種方法適用于空間某個(gè)特定方向上僅含一個(gè)可變跳速的FH信號(hào)和噪聲的混合信號(hào)天堂网在线综合网；●將空間插值的概念和寬帶波束形成技術(shù)結(jié)合起來(lái)欧美国产日韩中文字幕一区，提出了一種基于頻域處理的寬帶恒定束寬的波束形成方法。

Earthworks zero line is determined by constructing the spatial gridding curved surface model of the original terrain and the field leveling design terrain by digital elevation mode. The DEM data of original terrain are obtained by actual measurement. The mathematical correlation is deducted to demonstrate the relationship between the coordinates of any point on spatial line and the direction cosine by the spatial linear equation. DEM data obtaining program is compiled by Fortran9.0 and it is applied automatically to obtain the DEM data of field leveling design terrain.

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Results The behavioral features of the aged learning and memory impaired rats were as follow: 1 There was little change happened to the sample performance. 2 The spatial reference memory had obviously declined. The swimming times of searching the hidden platform in the place discrimination performance, the swimming time in a 40cm annulus at the primary platform place (A40T) and the platform crossings in the probe trial performance were the most suitable indexes for mirroring the spatial reference memory abilities. 3 The spatial working memory had not decreased so clearly.

結(jié)果 老年學(xué)習(xí)記憶損害大鼠的行為學(xué)改變特征為：1簡(jiǎn)單學(xué)習(xí)記憶任務(wù)的學(xué)習(xí)能力沒(méi)有明顯變化国产一级A片视频免费99。2空間參考記憶能力明顯減退，尋找平臺(tái)所用的游泳時(shí)間亚洲精品自拍AV在线日韩，40cm環(huán)內(nèi)游泳時(shí)間(A40T)和平臺(tái)跨越次數(shù)是反映老年學(xué)習(xí)記憶害大鼠空間參考記憶能力的理想指標(biāo)日日色综合色色。3空間工作記憶能力減退不明顯。