The emulsifying stability of the starch stearate increases with the increase of DS, dosage of starch stearate, and ratio of oil to water, but decreases with the increase of temperature.
硬脂酸淀粉酯的乳化稳定性随取代度、硬脂酸淀粉酯用量以及油水比的增加而增加,随温度的升高而降低。
By exploring the phase information among symbols of the Direct Sequence Spread Spectrum (DS-SS) signal, a novel de-noising approach, used in low signal noise ratio environment, is presented.
利用DS -SS信号符号间相位信息,提出了一种可工作于低信噪比下的直接序列扩谱(DS - SS)信号噪声抑制方法。
This paper discusses the despread of low signal to noise ratio of the direct sequence (DS) spread spectrum signals using intermediate-frequency recirculation summation loop (IFRSL).
本文讨论了用中频积累法实现低信噪比直接序列扩频信号的解扩。
Sensitivity of system performance to extinction ratio degradation and its evaluation were studied. Based on these analyses, the sensitivity of FFH-OCDMA system was compared to that of DS-OCDMA system.
讨论了系统性能对消光比劣化的敏感程度问题,并给出了评价方法,并据此对跳频系统和直接序列系统进行了比较。
The knowledge studies which according to oneself and unifies own ability, designed under one kind of extremely low signal-to-noise ratio condition short wave DS-SS communications system.
根据自己所学的知识并结合自己的能力,设计出了一种极低信噪比条件下的短波ds—ss通信系统。
The process-gains of the general receivers of DS/SS can't satisfy a low bit-error-rate if the signal-noise-ratio of input signal is very low.
在输入信噪比极低的直序扩频系统中,常规的接收机获得的处理增益难以满足系统低误码率的要求。
In this paper, a blind despreading algorithm is proposed for the synchronous multi-user long-code Direct Sequence spread Spectrum (DS-SS) signals in low signal to Noise Ratio (SNR) scenarios.
针对同步多用户长码直扩信号,该文提出了一种低信噪比条件下的盲解扩算法。
In this paper, a blind despreading algorithm is proposed for the synchronous multi-user long-code Direct Sequence spread Spectrum (DS-SS) signals in low signal to Noise Ratio (SNR) scenarios.
针对同步多用户长码直扩信号,该文提出了一种低信噪比条件下的盲解扩算法。
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