frequency rate造句
例句與造句
- Experienced a construction site accident frequency rate of 0 . 68 per 100 , 000 manhours in comparison to the hk construction industry rate of 1 . 89 per 100 , 000 manhours
2003年非致命意外率為每十萬工時(shí)0 . 68宗，遠(yuǎn)低于本港建造業(yè)每十萬工時(shí)1 . 89宗意外的比率 - Data that focus not on age but on length of service give similar results and confirm that the frequency rate of work accidents decreases with length of service
事故的次數(shù)的多少與人的年齡無直接關(guān)系，但與服務(wù)的年限的長(zhǎng)短有關(guān)，事故的頻率隨著服務(wù)年限的增長(zhǎng)而減少。 - The theory of soplat using frequency rate is discussed in chapter 2 . based on this theory , this chapter studies the observed discrete - time signal . the crlb of continuous wave and coherent pulses frequency estimation are also studied
論文第二章討論了利用頻率變化率的單站無源定位原理,在此基礎(chǔ)上,介紹了單站無源系統(tǒng)中接收信號(hào)的模型,并分析基于各模型的頻率估計(jì)的cramer - rao下界。 - The radar which is embedded on platform sidelooking , but the platform will be disturbed by airflow inevitably . so , the radar will have a small sloping angle , thereby , the doppler centroid that is not zero and doppler frequency rate need to be estimated from the raw echo data in order to focus in azimuth commendably
場(chǎng)景成像的合成孔徑雷達(dá)一般是正側(cè)視放置,但是載機(jī)不可避免的要受到各種擾動(dòng)影響,雷達(dá)會(huì)有一定的斜視角,從而導(dǎo)致了多普勒中心頻率不為零,多普勒調(diào)頻斜率也隨著雷達(dá)斜視角改變。 - Quite a few of new methods of soplat have been proposed in the last decade , most of these methods add new measurements values to the bearing - only method base on the particle kinematics . this paper studies the challenge technology of soplat method using frequency rate , including frequency and frequency rate estimation
近幾年來,這一技術(shù)得到了新的發(fā)展,質(zhì)點(diǎn)運(yùn)動(dòng)學(xué)原理和多年的研究證明,在傳統(tǒng)的只測(cè)向方法的基礎(chǔ)上增加多普勒頻率變化率的算法可提高無源定位系統(tǒng)的可觀測(cè)性,實(shí)現(xiàn)瞬時(shí)定位,但同時(shí)也對(duì)信號(hào)接收機(jī)提出了更高的要求。 - It's difficult to find frequency rate in a sentence. 用frequency rate造句挺難的
- This method offers more precise geometry for spaceborne sar system design and simulation . 3 . in the analyzing on the radar doppler properties , under the ellipsoid earth model and ellipse orbit model , considering the earth rotation , the radar doppler properties with different orbit eccentricity are compared , and the fact that orbit eccentricity affects doppler frequency rate is found
在雷達(dá)多普勒特性分析中，論文采用橢球地球模型和橢圓軌道模型，結(jié)合地球的自轉(zhuǎn)，通過不同偏心率下雷達(dá)多普勒特性的比較，研究了軌道偏心率對(duì)合成孔徑雷達(dá)系統(tǒng)設(shè)計(jì)與模擬軟件研究雷達(dá)多普勒調(diào)頻斜率的影響。 - At the doppler centroid aspect , this paper make use of maximum value method ; energy method and autocorrelation function method to estimate doppler centroid . at the doppler frequency aspect , this paper make use of image offset method ; time - frequency method ; minimum entropy and fractional fourier transformation method to estimate doppler frequency rate
在多普勒參數(shù)估計(jì)中,采用了最大值法、能量法和自相關(guān)函數(shù)法進(jìn)行多普勒中心頻率估計(jì);采用了圖像偏移法、時(shí)頻分析法、最小熵法和分?jǐn)?shù)階傅里葉變換法進(jìn)行多普勒調(diào)頻斜率估計(jì)。 - Chapter 4 amply analyses the airborne sar motion compensation mechanism on the range compressed data and proposes its flow chart . the algorithm ’ s robustness is decided by the precision of the doppler parameter . a doppler frequency rate estimator based on image cost function is discussed because it has the characteristic of high precision and robustness
此外,本章還討論了的基于圖像準(zhǔn)則的多普勒調(diào)頻斜率估計(jì)算法,該算法具有高精度和高穩(wěn)定性的特點(diǎn),這是基于距離壓縮數(shù)據(jù)的sar運(yùn)動(dòng)補(bǔ)償算法穩(wěn)定性的可靠保證。