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本文给出了1992年4月中旬在浙江宁波北仑港进行的岸基X波段及C波段观测海面雷达后向散射系数σ°现场实验的部分结果，并对σ°、入射角θ、风速U及相对方位角X的关系作了讨论。实验表明，当风速在2．2～11．5m／s时，对于HH、VV及HV极化：（1）当20°≤θ＜65°时，对于X波段和C波段，σ°和exp（θ／θ。）成正比，且θ。在5°～8°之间；（2）对于X波段，当θ≤65°时。σ°比于Ur，在45°入射角VV极化时，r＝1．49；（3）σ°在逆风时接近最大，在侧风时接近最小。
In this paper, some results of on-site experiments on the shore-based X-band and C-band sea surface wave radar backscattering coefficients σ ° in mid-April 1992 in Beilun Harbor, Ningbo, Zhejiang Province are presented. The σ °, angle of incidence θ, The relative azimuth X is discussed. Experiments show that for the HH, VV and HV polarizations when the wind speed is between 2.2 and 11.5 m / s: (1) For the X-band and C-band, 20 ° ≤ θ <65 °, σ ° and exp (Θ / θ.) Is proportional and θ. Between 5 ° and 8 °; (2) for X-band, when θ≤65 °. σ ° is greater than Ur, r = 1.49 at Vp polarization of 45 °; (3) σ ° is near maximum at upwind and near minimum at crosswind.