1) Echo intensity
回声强度
1.
An acoustic model was set up to estimate the concentration of suspended particulate matter(SPM) from ADCP echo intensity,which accounted not only for the attenuation caused by seawater and SPM,but also the corrections of non-spherical spreading in the transducer near-field and instrument.
利用黄河口海床基声学多普勒流速剖面仪(ADCP)的周日观测资料对悬浮物浓度进行了反演,反演过程中综合考虑了球面扩散、声学近场的非球面扩散、海水和悬浮颗粒的吸收衰减以及其他因素对回声信号的影响,结果表明在粒径保持相对稳定的情况下,利用ADCP仪回声强度反演悬浮物浓度具有较高的精度。
2.
The investigation was carried out during June 2006 using RD300K ADCP,echo intensity extracted from ADCP,temperature,salinity and current velocity were selected as input layer variables,suspended particle matter concentration of surface layer was calculated based on BP algorithm.
根据2006年7月在长江口区的20个站位使用RD300K型宽幅ADCP测量得到的实测资料,提取其回声强度信息,把回声强度、温度、盐度、流速作为输入层变量,利用BP算法反演悬浮泥沙浓度,结果表明此方法精度较高(平均相对误差为18。
2) echo strength
回声强度
1.
Numerical results of echo strength at frequency 3 kHz a.
利用近场板块元方法研究目标近场、远场的过渡规律 ,并运用了目标相互干涉理论 ,对复杂目标近场回声强度出现的干涉现象进行了物理解释 。
3) ultrasonic echo intensity
超声回波强度
1.
Influencing factors in ultrasonic echo intensity and clinical ultrasonic imaging;
超声回波强度的影响因素及临床声像图问题研究
4) acoustic radar echo amplitude
声雷达回波强度
5) Bright band
强回声带
补充资料：表光合强度(见光合强度)
表光合强度(见光合强度)
forecast of sowing or transplanting time
b iaoguanghe qiangdu表光合强度见光合强度
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条