تمامی مطالب مطابق قوانین جمهوری اسلامی ایران میباشد.درصورت مغایرت از گزارش پست استفاده کنید.

جستجو

کانال خرید و فروش پرنده

UWB RADAR

    These very short pulses need a wider receiver bandwith as conventional radar systems. Often the absolute bandwidth is bigger than 1 GHz.wikimedia.e.jpg/220px-Radar_antenna.

    The spectrum of a very narrow-width pulse has a very large frequency spectrum approaching that of white noise as the pulse becomes narrower and narrower. the bandwidth of the UWB signal) is at least 25% of the center frequency.

    .jpg">

    Ultra Wideband (UWB) radar systems transmit signals across a much wider frequency than conventional radar systems and are usually very difficult to detect. The most common technique for generating a UWB signal is to transmit pulses with very short durations (less than 1 nanosecond). Thus, a UWB signal centered at 2 GHz would have a minimum bandwidth of 500 MHz and the minimum bandwidth of a UWB signal centered at 4 GHz would be 1 GHz. The transmitted signal is significant for its very light power spectrum, which is lower than the allowed unintentional radiated emissions for electronics.org/wikipedia/commons/thumb/9/90/Radar_antenna.

    The amount of spectrum occupied by a signal transmitted by a UWB-radar (i
    این مطلب تا کنون 99 بار بازدید شده است.
    ارسال شده در تاریخ دوشنبه 26 فروردين 1392 [ گزارش پست ]

    منبع
    برچسب ها : , , , , , , , , , , , ,

آمار امروز شنبه 27 آبان 1396

  • تعداد وبلاگ :55488
  • تعداد مطالب :172317
  • بازدید امروز :346740
  • بازدید داخلی :15521
  • کاربران حاضر :180
  • رباتهای جستجوگر:271
  • همه حاضرین :451

آخرین کلمات جستجو شده

تگ های برتر