给出一段在windows下利用hackrf利用指定采样率接收指定频率和带宽的信号并保存到数组的C/C++代码
时间: 2024-03-06 14:46:59 浏览: 106
以下是一个简单的 C/C++ 程序,用于在 Windows 系统上使用 HackRF 接收指定频率和带宽的信号,并将其保存到数组中:
```c++
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <hackrf.h>
#define BUFFER_SIZE 8192
#define SAMPLE_RATE 20000000
#define FREQUENCY 433920000
#define BANDWIDTH 2000000
int main(int argc, char **argv)
{
int result;
uint32_t i, j;
uint32_t buffer_count = 0;
uint8_t buffer[BUFFER_SIZE];
hackrf_device *device = NULL;
hackrf_transfer *transfer = NULL;
// 初始化 HackRF 设备
result = hackrf_init();
if (result != HACKRF_SUCCESS) {
fprintf(stderr, "hackrf_init() failed: %s (%d)\n", hackrf_error_name(result), result);
return EXIT_FAILURE;
}
// 打开 HackRF 设备
result = hackrf_open(&device);
if (result != HACKRF_SUCCESS) {
fprintf(stderr, "hackrf_open() failed: %s (%d)\n", hackrf_error_name(result), result);
return EXIT_FAILURE;
}
// 配置 HackRF 设备
result = hackrf_set_sample_rate_manual(device, SAMPLE_RATE, 1);
if (result != HACKRF_SUCCESS) {
fprintf(stderr, "hackrf_set_sample_rate_manual() failed: %s (%d)\n", hackrf_error_name(result), result);
return EXIT_FAILURE;
}
result = hackrf_set_freq(device, FREQUENCY);
if (result != HACKRF_SUCCESS) {
fprintf(stderr, "hackrf_set_freq() failed: %s (%d)\n", hackrf_error_name(result), result);
return EXIT_FAILURE;
}
result = hackrf_set_baseband_filter_bandwidth(device, BANDWIDTH);
if (result != HACKRF_SUCCESS) {
fprintf(stderr, "hackrf_set_baseband_filter_bandwidth() failed: %s (%d)\n", hackrf_error_name(result), result);
return EXIT_FAILURE;
}
// 分配传输缓冲区
transfer = (hackrf_transfer *)malloc(sizeof(hackrf_transfer));
if (transfer == NULL) {
fprintf(stderr, "failed to allocate transfer buffer\n");
return EXIT_FAILURE;
}
transfer->buffer = buffer;
transfer->buffer_length = BUFFER_SIZE;
transfer->rx_ctx = NULL;
// 开始接收数据并保存到数组中
while (buffer_count < BUFFER_SIZE) {
result = hackrf_receive(device, receive_callback, transfer, 1000);
if (result != HACKRF_SUCCESS) {
fprintf(stderr, "hackrf_receive() failed: %s (%d)\n", hackrf_error_name(result), result);
return EXIT_FAILURE;
}
buffer_count += transfer->valid_length;
transfer->buffer += transfer->valid_length;
transfer->buffer_length -= transfer->valid_length;
transfer->valid_length = 0;
}
// 打印接收到的数据
for (i = 0; i < BUFFER_SIZE; i++) {
printf("%02X ", buffer[i]);
if ((i + 1) % 16 == 0) {
printf("\n");
}
}
// 释放资源
hackrf_close(device);
hackrf_exit();
free(transfer);
return EXIT_SUCCESS;
}
int receive_callback(hackrf_transfer *transfer)
{
// 不做任何处理,直接返回
return 0;
}
```
请注意,此代码可能需要根据您的具体要求进行修改。例如,您可能需要更改采样率、频率、带宽以及缓冲区大小等参数来满足您的需求。此外,您还可以根据需要修改回调函数 `receive_callback`,以对接收到的数据进行处理。
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