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一、序言海洋中自然噪声是水声探测仪器的水下主要干扰源之一。这些噪声源中起主要作用的有海水运动噪声,包括因风速变化引起海面扰动产生的噪声、船只噪声、以及生物噪声等。它们在不同频率上有不同的特性,而且在谱的任一区域中,这些源中的一个或几个将超过其他源起主导作用。显然,自然噪声是由海洋中各种声源组合的结果,这种不同组合构成了自然噪声谱特性随着不同海区和时间而不同。Wenz,G、M、[3]、
I. Preface The natural noise in the ocean is one of the major underwater sources of underwater acoustic detection equipment. Among these noise sources, there are seawater movement noise which mainly includes sea surface disturbance due to wind speed change, ship noise and biological noise. They have different properties at different frequencies, and one or more of these sources will dominate over other sources in any area of the spectrum. Obviously, natural noise is the result of a combination of various sound sources in the ocean. This different combination makes up the natural noise spectrum that varies with sea areas and times of day. Wenz, G, M, [3],