DSP采样完成后转化为IQ24格式,标幺的范围是-1到1 ,那么IQ24的范围是-1到1 ?
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_iq定义的变量范围是有符号32bit整型数据, 所以IQ24定义的变量范围不是-1到1,而是-128到+127,也就是8位有符号整数的范围.