The mean pixel va lues of the muscles and the background standard deviation were measured alternat ively.

結(jié)果：腦白質(zhì)在第一回波的信噪比為73.67在线免费91，在第二回波的信噪比為27.61首页国产日韩欧美第一页。

Fig. 4 Measurement data abo ut echo signal f rom hard target and reference when t he hard target is still , in po sitive , negative rotation c

圖 4 是為了矯正參考信號與回波信號入射到法 790 光學(xué)學(xué)報(bào) 28 卷圖 4 配合目標(biāo)靜止亚洲欧美日韩图片，正轉(zhuǎn)和反轉(zhuǎn)時回波信號與參考信號的測量數(shù)據(jù)

The two small cells born at southeast of Beijing develop rapidly and gradually move northwestward into urban area.

分析還表明爱爱小黄片，20：00左右的超強(qiáng)雷達(dá)回波是由大氣異常傳播造成的虛假超折射回波。

The paper realizes the echo image and the interaction interface non-twinkle display by off-screen drawing , the echo image all-round sweep dynamic display and the simulation of functions of the sonar simulator.

通過離屏繪制實(shí)現(xiàn)了回波圖像及人機(jī)交互界面的無閃爍顯示韩国日本ww色成年免费网站，并實(shí)現(xiàn)了回波圖像的圓周掃描動態(tài)顯示和漁用聲納模擬器各種功能的模擬影音先锋最新av资源。

Orthogonal detection can give us both the amplitude information for gray-scale imaging and phase shift information for doppler spectrum analysis.

正交檢波方法既能給出灰度超聲成像所需要的回波的幅值信息，也能給出多普勒超聲成像所需要的回波的相移信息婷婷五月综合网中文综合网。

First order sea echo, which contain the information of ocean surface current, is firstly separated from sea echo through prepossessing. MUSIC is then applied to extract the bearings of the signals at every Bragg shift.

該算法首先通過預(yù)處理從海洋回波中分離包含海流信息的一階回波在线欧美h，然后針對其中可分辨的每一個Doppler頻移上的信號，采用MUSIC算法求其多個存在方位欧美性三级视频。

The result was that the defending radar operator saw a large cloud of echoes on his radarscope, completely obscuring echoes from the attacking planes.

結(jié)果防御方的雷達(dá)操作員在顯示器上只能看到大片的回波云美日韩美女自插在线视频观看，完全將攻擊飛機(jī)的回波淹沒。

Typhoon Nanmadol made landfall on Taiwan on December. The outer rainband of typhoon combining with northeasterly monsoon induced strong reflectivity. When Typhoon Nanmadol left Taiwan, reflectivity dissipated rapidly because of incursion of drier and colder air.

月份侵臺之南瑪臺風(fēng)日韩中文有码精品视频在线，外圍雨帶因與東季風(fēng)共伴而產(chǎn)生強(qiáng)回波一级欧美片网站，出海后因?yàn)闁|季風(fēng)較乾的空氣侵入，使得臺風(fēng)回波迅速消散一级毛片免费播放在线视i。

First, in order to verify the correct of this retrieval month, by using the data of three-dimensional wind field, raininess field and temperature field that are output by MM5 numerical simulation, we climate the radial velocity field and echo intention field in the in-phase observation area of Dual-Doppler radar, then, on the base of the upwards retrieval theory and using the radial velocity field and echo intention field in the in-phase observation area of Dual-Doppler radar, we retrieve the atmospheric three-dimensional wind field.

首先七七久久，為檢驗(yàn)此種反演方法的可靠性，我們使用MM5數(shù)值模式輸出的三維風(fēng)場Aa黄色网址、雨強(qiáng)場老熟妇仓乱视频一区二区、溫度場等數(shù)據(jù)，分別模擬生成兩部雷達(dá)同步觀測區(qū)的徑向速度場和回波強(qiáng)度場zz12国产小视频你懂的，然后根據(jù)以上的反演理論利用模擬的雙多普勒天氣雷達(dá)觀測到的徑向速度場和回波強(qiáng)度場反演出大氣三維風(fēng)場国外A片无码毛片免费视频。

Polarization filtering technique is widely used in many fields, for example interference suppression of sky wave in HF radar. Based on the actual wave data of both signal and clutter, the cause for generation of error, way of error reduction and improvement of SIR by using polarization filtering technique are discussed.

極化濾波技術(shù)在高頻雷達(dá)抗天波干擾等領(lǐng)域有著廣泛的應(yīng)用，結(jié)合實(shí)際雷達(dá)測得的目標(biāo)回波和干擾回波矢量數(shù)據(jù)国产黄片免费看看，對極化濾波誤差產(chǎn)生的原因免费人城网站在线观看、減小誤差的方法以及利用極化濾波方法提高信干比的有效性進(jìn)行了詳細(xì)分析。