In order to improve the anti - jamming ability of phased array radar system , wide signal bandwidth is needed 為了提高相控陣?yán)走_(dá)系統(tǒng)的抗干擾能力,相控陣?yán)走_(dá)必須具有盡可能大的帶寬。
The signal bandwidth can be changed by controlling the signal bandwidtt through the control of the rate of reading data 通過控制器讀取數(shù)據(jù)的速率來控制信號(hào)帶寬,達(dá)到信號(hào)帶寬可調(diào)的目的。
With the expanding of signal bandwidth in wireless communication , broad - band array signal processing has attracted broad attentions 隨著無線通信中信號(hào)帶寬的提高,寬帶數(shù)字波束形成開始受到重視。
Test results show that this adc achieves the snr of 90 db and distortion ratio of 0 . 0248 % for a 20khz signal bandwidth while operating under a single 3 . 3v supply 芯片測(cè)試結(jié)果顯示其信噪比達(dá)到90db ,總諧波失真0 . 0248 % ,基本達(dá)到了預(yù)期的設(shè)計(jì)指標(biāo)。
The special relationship among signal bandwidth , center frequency and imaging squint angle in the range - doppler imaging algorithm and other methods is also presented in the chapter 3 本章通過分析提出了距離多普勒等成像方法中信號(hào)帶寬、工作頻率和成像斜角之間存在的特定關(guān)系。
On the other hand , in order to distinguish and identify the targets , and to solve the problems of radar imaging , phased array radar must have also wide instantaneous signal bandwidth 另外,為了提高天線的分辨、識(shí)別能力和對(duì)多目標(biāo)成像的能力,相控陣?yán)走_(dá)還必須具有大的瞬時(shí)信號(hào)帶寬。
The power driver yields output power with a gain variation less than 1 . 18db and a maximum of 1 . 37 - w output power within the entire band of interest . the large - signal bandwidth of this power - driver is 1 . 5ghz 在驅(qū)動(dòng)級(jí)放大器的工作頻率范圍內(nèi)實(shí)測(cè)的功率增益不平坦度小于1 . 18db ,獲得的最大輸出功率( 1 . 37w )帶寬優(yōu)于1 . 5ghz 。
The influence of data from the inertial measure unit ( imu ) to the precision of navigation computing is analyzed . the analysis is taken from two aspects , signal bandwidth curtailment and time delay 本文針對(duì)激光陀螺捷聯(lián)慣導(dǎo)系統(tǒng)的數(shù)據(jù)采集電路,從信號(hào)帶寬縮減和時(shí)間延遲兩個(gè)方面分析慣性測(cè)量數(shù)據(jù)對(duì)導(dǎo)航解算精度的影響情況。
This paper makes out the sampling frequency of bandpass sampling theorem , reduces the data rate after the sampling of broadband software radio ( signal bandwidth is 20 mhz ) and raises information processing speed 本文確定了按帶通采樣定理采樣的頻率,降低了寬帶軟件無線電(信號(hào)帶寬為20mhz )采樣后的數(shù)據(jù)率,提高了信息處理能力。