According to the difference of Doppler spectra of meteor trail echo and clutter of ground and sea,a FIR high-pass filter is designed to filter out clutter and so the meteor trail echo becomes obvious.

該文根據(jù)地海雜波與流星干擾在多普勒譜上的差別，提出了用FIR型高通濾波器濾除雜波使流星干擾凸顯出來巨乳在线白虎在线；再根據(jù)流星干擾的分布特點(diǎn)分段計算背景噪聲均值，求取流星干擾檢測門限欧洲免费精品视频；最后用雜波信號來插值流星干擾位置上的數(shù)據(jù)色艹国产，消除因去除干擾造成的雜波相位不連續(xù)欧美肏屄a片。

I hope to see a meteor tonight while the final has been a meteor shower time can I still do not want to give up.

我希望看到今夜最后一顆流星雖然已經(jīng)過了流星雨的時間可我還是不想放棄。

Okay, it was a meteorite, or small meteor, but it was still a meteor.

好吧久久不卡亚洲精品国产精品，它是個隕石或者說小流星人人操人人摸性交精品。但是它仍可被稱為流星。

Of course, the meteor was part of the annual rain of dust from periodic Comet Swift-Tuttle known as the Perseid Meteor Shower.

斯威夫特－塔特爾彗星周期性回歸后一级A片免费视频国产对白，遺留下的塵埃形成一年一度的流星雨一区二区三区激情欧美亚洲日本，也就是著名的英仙座流星雨欧美老妇女网站，當(dāng)然，這顆流星就是其中的一部分欧美乱伦小视频。

Explanation: This bright and colorful meteor flashed through Tuesday's early morning skies, part of the annual Perseid Meteor Shower.

說明： 這顆來自英仙座流星雨的明亮多彩流星国自产拍精品自拍，在星期二掠過了清晨的長空色哟哟夜夜操。

The Perseid meteor shower has been observed for about 2000 years, with the first known information on this meteor shower coming from the Far East.

英仙座流星雨已經(jīng)看到了大約2000年黄色在线三区，第一已知信息關(guān)于這個流星雨來自遠(yuǎn)東。

Meteor in the majority of them fell to the ground about 60-70 km height Will be burning out, and by our Sky Survey camera tracking shot of a meteor that this is a very slow rate of growth fell to the ground about 37 kilometers away from the high, it at least a few films or meteorite impact to the scene.

大多數(shù)流星在它們降到到地面大約60-70公里的高度時就會被燃燒掉在线免费观看你懂的，而由我們的巡天攝像機(jī)跟蹤拍攝的這一顆流星卻以相當(dāng)緩慢的速度降到了距離地面大約37公里的高度處，因此它至少有一片或幾片隕星撞擊到了場面久久精品国产亚AV香蕉。

For observers in northern hemisphere, we do not need to wait until wee hour for the show. The meteor shower is known as Geminid Meteor Shower because the meteors are radiating from the constellation of Gemini.

這時候所見的流星，多數(shù)原自于雙子座国外女网址www女，故被稱為雙子座流星群高清无码一级黄色视频；而發(fā)射出流星的那一處則是輻射點(diǎn)，靠近&北河二&這顆亮星六大免费黄色网站。

News: Savor the Shooting Stars -- Geminid Meteor Shower Peaks Tonight - Savor the Shooting Stars -- Geminid Meteor Shower Peaks Tonight...

新聞：品嘗的流星--流星雨高峰今晚geminid -品嘗的流星--流星雨高峰今晚geminid來自行星消息

About 50,000 years ago, however, a large meteor created Barringer Meteor Crater in Arizona , USA . Also known simply as Meteor Crater, the resulting impact basin spans over a kilometer.

然而，在50鸥美免费黄片观看，000年以前，一顆巨大的流星在美國亞利桑那州日本一区二区欧美亚洲国产，造成了貝林傑隕石坑，其直徑約有一公里求在线视频你懂的。