He kuleana koʻikoʻi ko ke kamaʻilio ukali i nā noi koa a me nā noi kīwila o kēia wā, akā ʻo kona hiki ke hoʻopilikia ʻia ua hoʻoulu i ka hoʻomohala ʻana o nā ʻano hana anti-jamming like ʻole. Hōʻuluʻulu kēia ʻatikala i nā ʻenehana haole koʻikoʻi ʻeono: spread spectrum, coding and modulation, antenna anti-jamming, on-board processing, transform-domain processing, a me ka amplitude-domain processing, me nā ʻano hana loulou adaptive, e nānā ana i kā lākou mau loina a me nā noi.
1. ʻenehana hoʻolaha spectrum?
Hoʻonui ka spread spectrum i ka hiki ke pale i ka jamming ma ka hoʻonui ʻana i ka bandwidth hōʻailona, e hōʻemi ana i ka nui o ka spectral mana. Hoʻohana ka Direct Sequence Spread Spectrum (DSSS) i nā code pseudo-random e hoʻonui i ka bandwidth hōʻailona, e hoʻopuehu ana i ka ikehu hoʻopilikia narrowband. He mea koʻikoʻi kēia i nā kamaʻilio ukali koa, e kūʻē ana i ka jamming i manaʻo ʻia (e laʻa, co-frequency a i ʻole ka broadband walaʻau hoʻopilikia) e hōʻoia i ke kauoha palekana a me ka hoʻouna ʻike.
2. ʻEnehana Coding a me Modulation?
ʻO nā code hoʻoponopono hewa holomua (e laʻa, nā code Turbo, LDPC) i hui pū ʻia me ka modulation kauoha kiʻekiʻe (e laʻa, PSK, QAM) e hoʻomaikaʻi i ka pono spectral me ka hoʻēmi ʻana i nā hewa i hoʻokomo ʻia e ke komo ʻana. No ka laʻana, hoʻonui ka LDPC me ka QAM kauoha kiʻekiʻe i nā lawelawe ukali kalepa (e laʻa, HDTV, pūnaewele) a hōʻoia i ka kamaʻilio koa ikaika i nā wahi hoʻokūkū.
3. ʻenehana Anti-Jamming Antenna?
Hoʻoponopono ikaika nā antenna adaptive a me nā antennas akamai i nā ʻano kukuna e hoʻopau i nā jammers. Hoʻokele nā antennas adaptive i nā nulls i nā kumu hoʻopilikia, ʻoiai nā antennas akamai e hoʻohana i ka hana multi-array no ka kānana spatial. He mea nui kēia i ka SATCOM koa e kūʻē i nā hoʻoweliweli kaua uila.
4. ʻenehana hana ma luna o ka papa (OBP)?
Hana ʻo OBP i ka demodulation hōʻailona, decoding, a me ke kuhikuhi pololei ʻana ma nā satelite, e hōʻemi ana i nā nāwaliwali o ka relay honua. Hoʻokomo pū ʻia nā noi koa i ka hana kūloko palekana e pale aku i ka hoʻolohe pepeiao a me ka hoʻokaʻawale ʻana i nā kumuwaiwai no ka pono.
5. Ka Hana ʻana i ka Transform-Domain?
ʻO nā ʻano hana e like me ka FFT a me ka wavelet transforms e hoʻololi i nā hōʻailona i nā alapine (frequency) a i ʻole nā kikowaena alapine (frequency) manawa no ka kānana ʻana i nā mea hoʻopilikia. Hoʻokūkū kēia i ka broadband a me ka jamming e loli ana i ka manawa, e hoʻomaikaʻi ana i ka hiki ke hoʻololi i nā wahi electromagnetic paʻakikī.
6. Ka Hana ʻana i ka Amplitude-Domain?
Hoʻopau nā Palena a me ka Mana Loaʻa Aunoa (AGC) i ka hoʻopilikia impulsive ikaika (e like me ka uila a i ʻole ke kāohi ʻana o ka ʻenemi), e pale ana i nā kaapuni mea hoʻokipa a mālama i ke kūpaʻa o ka loulou.
7. ʻenehana loulou hoʻololi?
ʻO nā hoʻoponopono manawa maoli i ke code, modulation, a me nā helu ʻikepili e pili ana i nā kūlana o ke kahawai (e laʻa, SNR, BER) e hōʻoia i ka kamaʻilio hilinaʻi me ka nānā ʻole i ke aniau a i ʻole ka jamming. Hoʻohana nā ʻōnaehana koa i kēia no ke kūpaʻa i nā hiʻohiʻona kaua ikaika.
Hopena?
Hoʻohana nā ʻenehana anti-jamming haole i nā ʻano hana multi-layered e pili ana i ka hana hōʻailona, coding, a me nā ʻōnaehana adaptive. Hoʻoikaika ka hoʻohana ʻana i ka pūʻali koa i ka paʻa a me ka palekana, ʻoiai ke kālele nei nā noi kalepa i ka pono. Hiki i nā holomua i ka wā e hiki mai ana ke hoʻohui i ka AI a me ka hana manawa maoli e kūʻē i nā hoʻoweliweli e ulu nei.
ʻO Chengdu Concept Microwave Technology CO., Ltd kahi mea hana ʻoihana o nā ʻāpana RF 5G/6G no ke kamaʻilio ukali ma Kina, me ka kānana RF lowpass, kānana highpass, kānana bandpass, kānana notch/band stop, duplexer, Power divider a me directional coupler. Hiki ke hoʻopilikino ʻia lākou āpau e like me kāu mau koi.
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Ka manawa hoʻouna: Iulai-29-2025