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Recent content by jdwaverly

  1. J

    Programming assignment help needed

    You need to study how to write mathematical calculations in C. Look up the library functions for trig functions. Look up how to print values in C This should help https://cboard.cprogramming.com/tech-board/49844-calculating-inverse-tangent.html
  2. J

    How to actually write code into 8086

    For embedded programming the short answer is that you need to either: (a)Build an 8086 based system with memory(flash, EEPROM or RAM) to hold your program where you need to develop the transfer software and interface (b)Purchase a 8086 based development board to hold your program that comes...
  3. J

    Battery specification and charging

    tpetar, I understand your reasoning. But as a pedantic engineer I never like to assume anything. All the best
  4. J

    Reflected voltage pulses

    The simplest answer: At high frequencies the inductance and capacitance of a transmission line become very significant. The line acts like an infinite group of series parallel LC circuits **broken link removed** Kirchoff's laws still apply but the voltages are currents are now complex numbers...
  5. J

    Battery specification and charging

    The previous responder assumed your battery is a lead acid battery. 1.3ah seems VERY small for a led acid. My answer: Each type of battery, NiCd, NiMh, Lipoly, etc has VERY specific charging requirements that must be met. Some work best with constant voltage charging, others constant current...
  6. J

    how the decoding error happen in communication system?

    Decoding errors can occur because of: a)Noise in the transmission path b)Insufficient signal strength to decode the signal
  7. J

    DC component means? Time Gap between positive and negative cycles

    The DC component of any signal is its average value. Classic sine waves have an average of 0 volts and therefore no zero component. Circuits which operate off a single ended supply usually do not generate a negative going signal and therefore will always have a DC component. For DC coupled...
  8. J

    programmable circuit design

    As a followup to my response... To generate higher frequencies (up to 8 MHZ) you would interface a chip like this to the MPU: https://www.analog.com/en/digital-to-analog-converters/direct-digital-synthesis-dds/ad9838/products/product.html
  9. J

    programmable circuit design

    To generate any analog signal with a microprocessor requires some form of Digital to Analog(D/A) converter. Many micro development kits provide a D/A converter as part of the hardware. In the simplest form this device is accessed as either an I/O port or a memory location in the address space...
  10. J

    Recognize sounds by neural network

    Here's a link that describes the process https://www.cs.toronto.edu/~ruiyan/csc411/ANNSpeechRecognition.pdf
  11. J

    Recognize sounds by neural network

    The most difficult issue here is that neural networks are structured to process static data. I.e. look for these types of input values and activate this output. Speech recognition involves both the frequency domain ( magnitudes of spectral components) and the time domain ( the duration of the...

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