For the components to the design a construction, a HWIL Simulation evaluation system for infrared warning & reconnaissance systems and its fundamental theory is introduced.
介绍了用于红外侦察告警系统性能评估的半实物仿真系统的硬件结构和软件模块组成。
This paper introduces how to use DCT (discrete-cosine transform) in data-hiding technology in image, and its fundamental theory and algorithms, special improvements of existing algorithms.
该文主要介绍了如何利用离散余弦变换(DCT)实现对于图象文件的数据隐藏技术，详细说明了该技术的基本原理和实现方法，以及对现有算法的改进。
However empirical researches such as the riddle of equity premium and the acute fluctuation of stock price bring great challenge to it, and there are many defects on its fundamental theory, too.
然而证券市场中存在的股票溢价之谜、股价的过度波动等实证研究对其形成了极大的挑战，并且，其理论基础也存在诸多的缺陷。
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