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根据抽样定理，对连续函数进行抽样时，在x、y方向抽样点最大允许间隔分别为（ ），（其中 2 x B 、 2 y B 分别表示该函数在频域中的最小矩形在 x f 和 y f 方向上的宽度。）
A．.w64661630154s .brush0 { fill: rgb(255,255,255); } .w64661630154s .pen0 { stroke: rgb(0,0,0); stroke-width: 1; stroke-linejoin: round; } .w64661630154s .font0 { font-size: 363px; font-family: "Times New Roman", serif; } .w64661630154s .font1 { font-style: italic; font-size: 235px; font-family: "Times New Roman", serif; } .w64661630154s .font2 { font-style: italic; font-size: 363px; font-family: "Times New Roman", serif; } .w64661630154s .font3 { font-weight: bold; font-size: 76px; font-family: System, sans-serif; } 2,2 xy BB
B．.w64661630155s .brush0 { fill: rgb(255,255,255); } .w64661630155s .pen0 { stroke: rgb(0,0,0); stroke-width: 1; stroke-linejoin: round; } .w64661630155s .pen1 { stroke: rgb(0,0,0); stroke-width: 16; stroke-linejoin: round; } .w64661630155s .font0 { font-size: 363px; font-family: "Times New Roman", serif; } .w64661630155s .font1 { font-style: italic; font-size: 235px; font-family: "Times New Roman", serif; } .w64661630155s .font2 { font-style: italic; font-size: 363px; font-family: "Times New Roman", serif; } .w64661630155s .font3 { font-weight: bold; font-size: 76px; font-family: System, sans-serif; } 11 , 22 xy BB
C．.w64661630157s .brush0 { fill: rgb(255,255,255); } .w64661630157s .pen0 { stroke: rgb(0,0,0); stroke-width: 1; stroke-linejoin: round; } .w64661630157s .pen1 { stroke: rgb(0,0,0); stroke-width: 16; stroke-linejoin: round; } .w64661630157s .font0 { font-size: 363px; font-family: "Times New Roman", serif; } .w64661630157s .font1 { font-style: italic; font-size: 235px; font-family: "Times New Roman", serif; } .w64661630157s .font2 { font-style: italic; font-size: 363px; font-family: "Times New Roman", serif; } .w64661630157s .font3 { font-weight: bold; font-size: 76px; font-family: System, sans-serif; } 11 , xy BB
B．.w64661630155s .brush0 { fill: rgb(255,255,255); } .w64661630155s .pen0 { stroke: rgb(0,0,0); stroke-width: 1; stroke-linejoin: round; } .w64661630155s .pen1 { stroke: rgb(0,0,0); stroke-width: 16; stroke-linejoin: round; } .w64661630155s .font0 { font-size: 363px; font-family: "Times New Roman", serif; } .w64661630155s .font1 { font-style: italic; font-size: 235px; font-family: "Times New Roman", serif; } .w64661630155s .font2 { font-style: italic; font-size: 363px; font-family: "Times New Roman", serif; } .w64661630155s .font3 { font-weight: bold; font-size: 76px; font-family: System, sans-serif; } 11 , 22 xy BB
C．.w64661630157s .brush0 { fill: rgb(255,255,255); } .w64661630157s .pen0 { stroke: rgb(0,0,0); stroke-width: 1; stroke-linejoin: round; } .w64661630157s .pen1 { stroke: rgb(0,0,0); stroke-width: 16; stroke-linejoin: round; } .w64661630157s .font0 { font-size: 363px; font-family: "Times New Roman", serif; } .w64661630157s .font1 { font-style: italic; font-size: 235px; font-family: "Times New Roman", serif; } .w64661630157s .font2 { font-style: italic; font-size: 363px; font-family: "Times New Roman", serif; } .w64661630157s .font3 { font-weight: bold; font-size: 76px; font-family: System, sans-serif; } 11 , xy BB
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