Nordic芯片中C/I co-channel. 参数什么意思呢?

Nordic芯片中C/I co-channel. 参数什么意思呢?

在这里插入图片描述

C/I co-channel(同频道载波干扰比)是一个射频性能参数,用于衡量接收器在同一频道上抵抗干扰的能力。
根据提供的知识源,C/I co-channel参数表示接收器在同一频道上能够容忍的干扰信号与所需信号之间的功率比。这个参数通常以dB为单位表示。
例如,在Nordic Semiconductor的产品规格书中,我们可以看到不同芯片和不同模式下的C/I co-channel典型值:
nRF54L15在1Mbps模式下的C/I co-channel值为9 dB
nRF54L15在2Mbps模式下的C/I co-channel值为10 dB
nRF54L15在1Mbps蓝牙LE模式下的C/I co-channel值为-6 dB
nRF52系列芯片在1Mbps模式下的C/I co-channel值通常在9-10 dB左右
这个参数越高,表示设备在同频道干扰环境下的性能越好。在实际应用中,这个参数对于在拥挤的2.4GHz频段中运行的设备尤为重要,因为它决定了设备在存在同频干扰时的通信可靠性。

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admin1@admin1-YL-CLU6L-V1:~/android/btstack/port/nrf5-cinnamon/build$ cmake .. -- The C compiler identification is GNU 11.4.0 -- The CXX compiler identification is GNU 11.4.0 -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working C compiler: /usr/bin/cc - skipped -- Detecting C compile features -- Detecting C compile features - done -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ - skipped -- Detecting CXX compile features -- Detecting CXX compile features - done -- Configuring done -- Generating done -- Build files have been written to: /home/admin1/android/btstack/port/nrf5-cinnamon/build admin1@admin1-YL-CLU6L-V1:~/android/btstack/port/nrf5-cinnamon/build$ make Makefile:209: /Users/mringwal/Projects/Nordic/nRF5_SDK_17.0.2_d674dde/components/toolchain/gcc/Makefile.common: 没有那个文件或目录 make[3]: *** 没有规则可制作目标“/Users/mringwal/Projects/Nordic/nRF5_SDK_17.0.2_d674dde/components/toolchain/gcc/Makefile.common”。 停止。 make[2]: *** [CMakeFiles/pca10040.dir/build.make:70:CMakeFiles/pca10040] 错误 2 make[1]: *** [CMakeFiles/Makefile2:84:CMakeFiles/pca10040.dir/all] 错误 2 make: *** [Makefile:91:all] 错误 2 admin1@admin1-YL-CLU6L-V1:~/android/btstack/port/nrf5-cinnamon/build$ cat ../CMakeLists.txt cmake_minimum_required(VERSION 3.14) project(n5rf-ll) # nrf5 sdk root with nrfx set(NRF5_SDK_ROOT /home/admin1/android/nRF5_SDK_17.0.2_d674dde) set(NRF5_SDK_DIR $ENV{NRF52_SDK_PATH}) # list all sources file(GLOB_RECURSE btstack_src_src ../../src/*.c) file(GLOB_RECURSE btstack_src_hdr ../../src/*.h) file(GLOB_RECURSE btstack_embedded_src ../../platform/embedded/src/*.c) file(GLOB_RECURSE btstack_embedded_hdr ../../platform/embedded/src/*.h) file(GLOB_RECURSE btstack_port_src *.c) file(GLOB_RECURSE btstack_port_hdr *.h) file(GLOB_RECURSE nrfx_src ${NRF5_SDK_ROOT}/modules/*.c) file(GLOB_RECURSE nrfx_hdr ${NRF5_SDK_ROOT}/modules/*.h) # Compile pca10040 port using Make find_program(MAKE make) add_custom_target(pca10040 ALL WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/pca10040/armgcc COMMAND ${MAKE} SOURCES ${btstack_src_src} ${btstack_embedded_src} ${btstack_port_src} ${nrfx_src}) # fake executable for navigation in IDE add_executable(port EXCLUDE_FROM_ALL ${btstack_src_src} ${btstack_src_hdr} ${btstack_embedded_src} ${btstack_embedded_hdr} ${btstack_port_src} ${btstack_port_hdr} ${nrfx_src} ${nrfx_hdr} ) target_include_directories(port SYSTEM PUBLIC ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/port ../../3rd-party/segger-rtt ../../platform/embedded ../../chipset/cinnamon ../../src ${NRF5_SDK_ROOT}/components/boards ${NRF5_SDK_ROOT}/components/libraries/delay ${NRF5_SDK_ROOT}/modules/nrfx/drivers/include ${NRF5_SDK_ROOT}/modules/nrfx/mdk ${NRF5_SDK_ROOT}/modules/nrfx/hal ${NRF5_SDK_ROOT}/modules/nrfx ) admin1@admin1-YL-CLU6L-V1:~/android/btstack/port/nrf5-cinnamon/build$
10-23
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