96 lines
3.1 KiB
C
96 lines
3.1 KiB
C
#pragma once
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#ifndef SARIMAGEBASE_H
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#define SARIMAGEBASE_H
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/**
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* 成像过程中常用的计算函数
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****/
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#include "referenceHeader.h"
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#include "SARBaseTool.h"
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// ------------------------------------------- 成像 公用库----------------------------------------------------------
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// SAR 常用计算的方法
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double getRangeResolution(double startfreq, double endfreq);
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/// <summary>
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/// 方位向分辨率计算
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/// </summary>
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/// <param name="AzAngleRange">弧度制，方位角变化范围（>=0）</param>
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/// <param name="startFreq">起始频率</param>
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/// <returns></returns>
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double getAzimuthResolution(double AzAngleRange, double startFreq);
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// 根据输入数量构建汉明窗
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Eigen::MatrixXd hammingWindows(size_t num);
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// 频率域汉明窗口
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/// <summary>
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/// 频率域汉明窗口
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/// </summary>
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/// <param name="Nf">频率点数</param>
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/// <param name="Nxa">脉冲数量</param>
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/// <param name="alpha">权重</param>
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/// <returns>汉明窗权重</returns>
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Eigen::MatrixXd Hanning(size_t Nf, size_t Nxa, double alpha = 0.54);
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/// <summary>
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/// 获取2的平方数,大于2
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/// </summary>
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/// <param name="num"></param>
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/// <returns></returns>
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size_t nextpow2(size_t num);
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/// <summary>
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/// 对回波沿着行进行一维傅里叶逆变换
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/// </summary>
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/// <param name="ECHO"></param>
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/// <returns></returns>
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Eigen::MatrixXcd IFFTW1D(Eigen::MatrixXcd ECHO);
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/// <summary>
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/// 对回波沿着行进行一维傅里叶变换
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/// </summary>
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/// <param name="echo"></param>
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/// <returns></returns>
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Eigen::MatrixXcd FFTW1D(Eigen::MatrixXcd echo);
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Eigen::MatrixXcd FFTW2D(Eigen::MatrixXcd ECHO);
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Eigen::MatrixXcd fftshift(Eigen::MatrixXcd X);
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/// <summary>
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/// 对回波 加 hamming 窗
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/// </summary>
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/// <param name="FreqEcho">频域的回波数据（PRFnum,Freqnum)</param>
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/// <returns></returns>
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Eigen::MatrixXcd HammingWindows(Eigen::MatrixXcd FreqEcho);
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/// <summary>
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/// 对回波进行一维插值(并行），不能用来处理极坐标
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/// 插值方式为 实部虚部分别进行线性插值
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/// </summary>
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/// <param name="freqEcho">回波数据,（行数，列数）:（PRFNUM,freqNUM）</param>
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/// <param name="SourceFreqlist">回波的 原始频率列表</param>
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/// <param name="interpFreqlist">回波的 插值频率列表</param>
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/// <returns></returns>
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Eigen::MatrixXcd InterpFreqEcho(Eigen::MatrixXcd freqEcho, Eigen::VectorXd SourceFreqlist, Eigen::VectorXd interpFreqlist);
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/// <summary>
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/// 保存复数矩阵数据 为tiff， 其中，band 1: amp (linear) angle(radia)
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/// </summary>
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/// <param name="out_tiff_path"></param>
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/// <param name="data"></param>
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/// <returns></returns>
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int WriteComplexData2Amp_Arg(QString out_tiff_path, Eigen::MatrixXcd data);
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/// <summary>
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/// 保存复数矩阵数据 为tiff， 其中，band 1: amp (dB) angle(radia)
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/// </summary>
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/// <param name="out_tiff_path"></param>
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/// <param name="data"></param>
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/// <returns></returns>
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int WriteComplexData2AmpdB_Arg(QString out_tiff_path, Eigen::MatrixXcd data);
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// ----------------------------------------------------------------------------------------------------------
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#endif
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