| 1. | The strongly negative correlation between winter sea - ice extent of davis strait and july rainfall of north china turns into weaker correlation
冬季戴维斯海峡海冰是影响华北7月降水的“强信号” 。 |
| 2. | It controls the receiver ’ s gain , ensuring the receiver has a high gain when a weak signal is received and a low gain when a strong signal is received
它能够保证接收机在接收弱信号时增益高,而接收强信号时增益低。 |
| 3. | In contrast , there is less rainfall with a shorter period when aao is weaker . aao is therefore an important interannual signal influe ncing summer rainfall especially the mei
因此，南极涛动是一个能够对中国夏季降水尤其是梅雨异常产生重要影响的年际变化强信号，对江淮梅雨的预报也有重要意义。 |
| 4. | The dft ( discrete fourier transform ) method is use to demodulate the gap length of the low finesse fabry - perot sensor . 3 . the accuracy of the results of dft algorithm is analyzed
针对实际光强信号在波长域均匀采样，而在频率域非均匀采样的特点，讨论了傅立叶变换的变形? ?离散腔长变换( dgt )算法。 |
| 5. | With the rotational complex empirical orthogonal function rceof , we analyzed the spatio - temporal evolvement of the latest fifty years ssta of pacific ocean . came to a result that there are two strong signal center : one at middle and east pacific ocean near equator , the other at 40n . it will take several months to half a year for the signal to reach west pacific ocean from east coast of pacific ocean near equator correspond to enso
运用转动复自然正交展开rceof分析近50年太平洋海温场的时空结构，得出在赤道中东太平洋和40n附近有两个海温异常强信号中心赤道东海岸太平洋海温异常信号对应enso信号在几个月到半年左右传播到赤道西太平洋海温主要周期大部分落在310d的范围内，还存在年和准两年变化。 |
| 6. | Then the optical path difference can be obtained with psi algorithm and to use the phase value for each pixel to determine a height value for each pixel . a primary advantage of psi is its high precision . with careful control of environmental conditions , measurement precision to the nanometer scale or below is possible with psi
它的基本测量原理是，通过摄像系统( ccd )接受到的干涉图中空间坐标已知的各个像素点的光强信号，在压电晶体驱动参考光程有序变化时，采集到多幅干涉图的光强信号，由移相干涉法，由光强值得到被测光程差值(位相值) 。 |
| 7. | The characteristics of precipitation anomalies in summer , previous and simultaneous ssta and preceding winter accumulated snow depth anomalies corresponding to positive and negative phases of 10 - yr mode and 25 - 30 - yr mode are discussed respectively . no matter for 10 - yr mode or for 25 - 30 - yr mode , reverse characteristics corresponding to positive phases and negative phases appear in the above fields . it proves that the decadal variation of sah have a good relation to the decadal variation of other key element of climate system and we can regard sah as a strong signal of the anomalies in the climate system
( 4 )夏季南亚高压东西振荡具有明显的年代际变化特征，本文分别讨论了对应于10年周期态的正位相年和负位相年及25 - 30年周期态的正位相年和负位相年时夏季我国降水距平、前期及同期海温距平及前冬青藏高原积雪距平的分布特征，发现无论是10年周期态还是25 - 30年周期态，对于夏季南亚高压东西振荡的正位相年和负位相年以上各要素场呈现为很好的反位相特征，说明夏季南亚高压的年代际变化与气候系统中其他要素的年代际变化具有很好的关联性，可将南亚高压看作气候系统中大气子系统异常的强信号，通过分析南亚高压的年代际异常可以更直接地研究和预测区域气候异常。 |
| 8. | At the last , the reflectance detecting system is tested to verify its sensitivity to oxygen saturation alteration in blood and its consistence to transmittance detecting results . at the same time , the new method put forward in previous is proved to be an effective parameter to determine oxygen saturation in reflectance detection
最后，通过对该系统的实际定标和可靠性检验，证明本论文对检测到的反射光强信号进行的新的处理方法是可行的，与采用原有方法相比能够获得更高的灵敏度，且与透射式测量结果有较好的一致性。 |
| 9. | Motion westwards of typhoon stengthen subtropical high and let it stretch westwards , stengthen vorticity near subtropical high , it result with precipitation , drought and flood of jianghua in china . abnormal typhoon of last year is strong sign . it has much precipitation in middle and end region of yanzi river in less typhoon year
西移台风加强副高强度和西伸，强副高有利稳定副高及周边低涡加强，暴雨和洪涝区域有对应正涡度故易产生暴雨和洪涝，前一年异常台风是中国强涝年的强信号，副高和台风，暴雨，洪涝有较好其它的相互作用如长江中下游夏季多台少雨。 |
