Common methods for Q-value calculation are rise-time method, spectralratio method, spectrum modeling method, wavelet modeling method and so forth.
通常用于求取q值的方法有升时法、频谱比法、谱模拟法及子波模拟法等。
2
The research was conducted to determine the relationships of sugar and nitrogen status and its ratio in wheat leaves to canopy spectral reflectance under different nitrogen and water supply levels.
在不同土壤水氮条件下，研究了小麦中后期叶片碳氮状况及其比例与冠层光谱反射特征的关系。
3
The laser output energy, dynamic to static ratio, pulse bandwidth ana spectral line width etc. by Q-switching ware measured and analysed theoretically.