要得到真正的随机数，计算机不得不依赖外部资源，比如测量大气噪声的设备。

To get true random numbers, computers have to rely on external sources, such as devices to measure atmospheric noise.

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基于这一情况，本文以气体放电噪声源测量“RS12”接收机为例对接收设备噪声特性的测量进行了详细的阐述。

In this paper, the noise performance of receiver "RS12" are measured by means of gas discharged noise as example and explained in detail.

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本文介绍了利用矢量传感器测量舰船辐射噪声能够获取较大增益的基本原理、设备和基本构成，以及实际测量结果。

The basic principle on applying the vector sensor to measure submarine radiated noise with high gain is presented in this paper. The device, measurement system and some experimental results are shown.

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